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Academic literature on the topic 'Planar perovskites solar cells'

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Published: 19 August 2021
Last updated: 3 February 2022

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Journal articles on the topic "Planar perovskites solar cells":

1

Turren-Cruz, Silver-Hamill, Anders Hagfeldt, and Michael Saliba. "Methylammonium-free, high-performance, and stable perovskite solar cells on a planar architecture." Science 362, no. 6413 (October 11, 2018): 449–53. http://dx.doi.org/10.1126/science.aat3583.

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Currently, perovskite solar cells (PSCs) with high performances greater than 20% contain bromine (Br), causing a suboptimal bandgap, and the thermally unstable methylammonium (MA) molecule. Avoiding Br and especially MA can therefore result in more optimal bandgaps and stable perovskites. We show that inorganic cation tuning, using rubidium and cesium, enables highly crystalline formamidinium-based perovskites without Br or MA. On a conventional, planar device architecture, using polymeric interlayers at the electron- and hole-transporting interface, we demonstrate an efficiency of 20.35% (stabilized), one of the highest for MA-free perovskites, with a drastically improved stability reached without the stabilizing influence of mesoporous interlayers. The perovskite is not heated beyond 100°C. Going MA-free is a new direction for perovskites that are inherently stable and compatible with tandems or flexible substrates, which are the main routes commercializing PSCs.
2

Wang, Deng, Wenjing Li, Zhenbo Du, Guodong Li, Weihai Sun, Jihuai Wu, and Zhang Lan. "CoBr2-doping-induced efficiency improvement of CsPbBr3 planar perovskite solar cells." Journal of Materials Chemistry C 8, no. 5 (2020): 1649–55. http://dx.doi.org/10.1039/c9tc05679c.

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Although perovskite solar cells have achieved the highest 25.2% efficiency, they suffer from poor stability because the organic–inorganic hybrid perovskites are easily decomposed under the attacks of oxygen, moisture, heat and ultraviolet light.
3

Liang, Jingjing, Chunjun Liang, Huimin Zhang, Mengjie Sun, Hong Liu, Chao Ji, Xuewen Zhang, Dan Li, and Zhiqun He. "CH3NH3I post-treatment improves the performance of perovskite solar cells via eliminating the impure phases." Functional Materials Letters 10, no. 04 (August 2017): 1750049. http://dx.doi.org/10.1142/s1793604717500497.

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Organic–inorganic halide perovskites are currently generating extensive interest for applications in solar cells. The perovskite morphology and composition have significant roles in solar cells. Impure phases, which will influence the performance of solar cells, are inevitably present in the film of perovskite. We found that another MAI deposition on the previous perovskite could ameliorate the film. The post-deposited MAI participates in the reconstruction of the perovskite, leading to reduced amount of impure phase, increased grain size, increased absorption and significantly improved power conversion efficiency. The results demonstrate a treatment approach to fabricate efficient planar heterojunction perovskite solar cells.
4

Fan, Ping, Huan-Xin Peng, Zhuang-Hao Zheng, Zi-Hang Chen, Shi-Jie Tan, Xing-Ye Chen, Yan-Di Luo, Zheng-Hua Su, Jing-Ting Luo, and Guang-Xing Liang. "Single-Source Vapor-Deposited Cs2AgBiBr6 Thin Films for Lead-Free Perovskite Solar Cells." Nanomaterials 9, no. 12 (December 11, 2019): 1760. http://dx.doi.org/10.3390/nano9121760.

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Lead-free double perovskites have been considered as a potential environmentally friendly photovoltaic material for substituting the hybrid lead halide perovskites due to their high stability and nontoxicity. Here, lead-free double perovskite Cs2AgBiBr6 films are initially fabricated by single-source evaporation deposition under high vacuum condition. X-ray diffraction and scanning electron microscopy characterization show that the high crystallinity, flat, and pinhole-free double perovskite Cs2AgBiBr6 films were obtained after post-annealing at 300 °C for 15 min. By changing the annealing temperature, annealing time, and film thickness, perovskite Cs2AgBiBr6 solar cells with planar heterojunction structure of FTO/TiO2/Cs2AgBiBr6/Spiro-OMeTAD/Ag achieve an encouraging power conversion efficiency of 0.70%. Our preliminary work opens a feasible approach for preparing high-quality double perovskite Cs2AgBiBr6 films wielding considerable potential for photovoltaic application.
5

Ogundana, I. J., and S. Y. Foo. "Improving the Morphology of the Perovskite Absorber Layer in Hybrid Organic/Inorganic Halide Perovskite MAPbI3 Solar Cells." Journal of Solar Energy 2017 (May 3, 2017): 1–9. http://dx.doi.org/10.1155/2017/8549847.

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Recently, perovskite solar cells have attracted tremendous attention due to their excellent power conversion efficiency, low cost, simple fabrications, and high photovoltaic performance. Furthermore, the perovskite solar cells are lightweight and possess thin film and semitransparency. However, the nonuniformity in perovskite layer constitutes a major setback to the operation mechanism, performance, reproducibility, and degradation of perovskite solar cells. Therefore, one of the main challenges in planar perovskite devices is the fabrication of high quality films with controlled morphology and least amount of pin-holes for high performance thin film perovskite devices. The poor reproducibility in perovskite solar cells hinders the accurate fabrication of practical devices for use in real world applications, and this is primarily as a result of the inability to control the morphology of perovskites, leading to large variability in the characteristics of perovskite solar cells. Hence, the focus of research in perovskites has been mostly geared towards improving the morphology and crystallization of perovskite absorber by selecting the optimal annealing condition considering the effect of humidity. Here we report a controlled ambient condition that is necessary to grow uniform perovskite crystals. A best PCE of 7.5% was achieved along with a short-circuit current density of 15.2 mA/cm2, an open-circuit voltage of 0.81 V, and a fill factor of 0.612 from the perovskite solar cell prepared under 60% relative humidity.
6

Chang, Jingjing, Hai Zhu, Juanxiu Xiao, Furkan Halis Isikgor, Zhenhua Lin, Yue Hao, Kaiyang Zeng, Qing-Hua Xu, and Jianyong Ouyang. "Enhancing the planar heterojunction perovskite solar cell performance through tuning the precursor ratio." Journal of Materials Chemistry A 4, no. 20 (2016): 7943–49. http://dx.doi.org/10.1039/c6ta00679e.

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The presence of excess PbI2 can affect the structure of perovskites and photovoltaic performance of perovskite solar cells. Increased open-circuit voltage could be achieved by introducing proper PbI2. However, shorter carrier lifetime and increased recombination and resistance were observed when an excess of PbI2 was used.
7

Ivanova, A., A. Tokmakov, K. Lebedeva, M. Roze, and I. Kaulachs. "Influence of the Preparation Method on Planar Perovskite CH3NH3PbI3-xClx Solar Cell Performance and Hysteresis." Latvian Journal of Physics and Technical Sciences 54, no. 4 (August 1, 2017): 58–68. http://dx.doi.org/10.1515/lpts-2017-0027.

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Abstract Organometal halide perovskites are promising materials for lowcost, high-efficiency solar cells. The method of perovskite layer deposition and the interfacial layers play an important role in determining the efficiency of perovskite solar cells (PSCs). In the paper, we demonstrate inverted planar perovskite solar cells where perovskite layers are deposited by two-step modified interdiffusion and one-step methods. We also demonstrate how PSC parameters change by doping of charge transport layers (CTL). We used dimethylsupoxide (DMSO) as dopant for the hole transport layer (PEDOT:PSS) but for the electron transport layer [6,6]-phenyl C61 butyric acid methyl ester (PCBM)) we used N,N-dimethyl-N-octadecyl(3-aminopropyl)trimethoxysilyl chloride (DMOAP). The highest main PSC parameters (PCE, EQE, VOC) were obtained for cells prepared by the one-step method with fast crystallization and doped CTLs but higher fill factor (FF) and shunt resistance (Rsh) values were obtained for cells prepared by the two-step method with undoped CTLs.
8

WANG, JINFENG, BENGUANG ZHAO, LEI ZHU, and JIAN SONG. "THE ROLE OF Br AS DOPANT ON THE STRUCTURAL AND CHARGE TRANSPORT PROPERTIES IN CH3NH3PbI3−x−yBrxCly MIXED-HALIDE PEROVSKITE FOR HYBRID SOLAR CELLS." Surface Review and Letters 26, no. 02 (February 2019): 1850137. http://dx.doi.org/10.1142/s0218625x18501378.

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A series of CH3NH3PbI[Formula: see text]BrxCly mixed-halide perovskite were fabricated as light harvesters for organic–inorganic planar heterojunction perovskite solar cells (PSCs). This paper aimed at investigating the morphology and structural properties of Br doped mixed-halide perovskites and the influence on the corresponding photovoltaic performances. We found that Br incorporation in an I/Cl-based structure dramatically improved the charge transport within the perovskite layer. The average efficiency of the planar device was 13.6% with a minimal standard deviation of [Formula: see text] 1.53% and best efficiency as high as 15.13% was achieved. Moreover, the device showed superior stability over 20 days with little degradation [Formula: see text]9% when stored under ambient conditions, indicating the outstanding performances of planar heterojunction solar cells based on this material. The results highlight the crucial role of the Br doping on the performance of the PSCs and pave the way for further progress on this field.
9

Pantaler, Martina, Christian Fettkenhauer, Hoang L. Nguyen, Irina Anusca, and Doru C. Lupascu. "Deposition routes of Cs2AgBiBr6 double perovskites for photovoltaic applications." MRS Advances 3, no. 32 (2018): 1819–23. http://dx.doi.org/10.1557/adv.2018.151.

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ABSTRACTThe lead free double perovskite Cs2AgBiBr6 is an upcoming alternative to lead based perovskites as absorber material in perovskite solar cells. So far, the majority of investigations on this interesting material have focused on polycrystalline powders and single crystals. We present vapor and solution based approaches for the preparation of Cs2AgBiBr6 thin films. Sequential vapor deposition processes starting from different precursors are shown and their weaknesses are discussed. Single source evaporation of Cs2AgBiBr6 and sequential deposition of Cs3Bi2Br9 and AgBr result in the formation of the double perovskite phase. Additionally, we show the possibility of the preparation of planar Cs2AgBiBr6 thin films by spin coating.
10

Bidikoudi, Maria, and Emmanuel Kymakis. "Novel approaches and scalability prospects of copper based hole transporting materials for planar perovskite solar cells." Journal of Materials Chemistry C 7, no. 44 (2019): 13680–708. http://dx.doi.org/10.1039/c9tc04009a.

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Journal articles Dissertations / Theses

Dissertations / Theses on the topic "Planar perovskites solar cells":

1

Liu, Guoduan. "Fabrication and Characterization of Planar-Structure Perovskite Solar Cells." UKnowledge, 2019. https://uknowledge.uky.edu/ece_etds/137.

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Currently organic-inorganic hybrid perovskite solar cells (PSCs) is one kind of promising photovoltaic technology due to low production cost, easy fabrication method and high power conversion efficiency. Charge transport layers are found to be critical for device performance and stability. A traditional electron transport layer (ETL), such as TiO2 (Titanium dioxide), is not very efficient for charge extraction at the interface. Compared with TiO2, SnO2 (Tin (IV) Oxide) possesses several advantages such as higher mobility and better energy level alignment. In addition, PSCs with planar structure can be processed at lower temperature compared to PSCs with other structures. In this thesis, planar-structure perovskite solar cells with SnO2 as the electron transport layer are fabricated. The one-step spin-coating method is employed for the fabrication. Several issues are studied such as annealing the samples in ambient air or glovebox, different concentration of solution used for the samples, the impact of using filter for solutions on samples. Finally, a reproducible fabrication procedure for planer-structure perovskite solar cells with an average power conversion efficiency of 16.8%, and a maximum power conversion efficiency of 18.1% is provided.
2

Ngqoloda, Siphelo. "Hybrid lead halide perovskite thin films and solar cells by chemical vapour deposition." University of the Western Cape, 2021. http://hdl.handle.net/11394/8344.

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Philosophiae Doctor - PhD
The organic-inorganic hybrid perovskites such as methyl ammonium lead iodide (MAPbI3) or mixed halide MAPbI3-xClx (x is usually very small) have emerged as an interesting class of semiconductor materials for their application in photovoltaic (PV) and other semiconducting devices. A fast rise in PCE of this material observed in just under a decade from 3.8% in 2009 to over 25.2% recently is highly unique compared to other established PV technologies such as c-Si, GaAs, and CdTe. The high efficiency of perovskites solar cells has been attributed to its excellent optical and electronic properties. Perovskites thin film solar cells are usually deposited via spin coating, vacuum thermal evaporation, and chemical vapour deposition (CVD).
3

Liu, Mingzhen. "Planar heterojunction perovskite solar cells via vapour deposition and solution processing." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:89a275a8-5ec8-442c-a114-246a44dbd570.

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Hybrid organic-inorganic solar photovoltaic (PV) cells capable of directly converting sunlight to electricity have attracted much attention in recent years. Despite evident technological advancements in the PV industry, the widespread commercialisation of solar cells is still being mired by their low conversion efficiencies and high cost per Watt. Perovskites are an emerging class of semiconductors providing a low-cost alternative to silicon-based photovoltaic cells, which currently dominate the market. This thesis develops a series of studies on “all-solid state perovskite solar cells” fabricated via vapour deposition which is an industrially-accessible technique, to achieve planar heterojunction architectures and efficient PV devices. Chapter 2 presents a general outlook on the operating principles of solar cells, delving deeper into the specific operational mechanism of perovskite solar cells. It also explores the usual methods employed in the fabrication of perovskite thin films. Chapter 3 describes the experimental procedures followed during the fabrication of the individual components constituting the device from the synthesis of the precursors to the construction of the functioning perovskite PV devices. Chapter 4 demonstrates pioneering work involving the dual-source vapour deposition (DSVD) of planar heterojunction perovskite solar cells which generated remarkable power conversion efficiency values surpassing 15%. These significant results pave the way for the mass-production of perovskite PVs. To further expand the range of feasible vapour deposition techniques, a two-layer sequential vapour deposition (SVD) technique is explored in Chapter 5. This chapter focusses on identifying the factors affecting the fundamental properties of the vapour-deposited films. Findings provide an improved understanding of the effects of precursor compositions and annealing conditions on the films. Chapter 5 concludes with a comparison between SVD and DSVD fabricated films, highlighting the benefits of each vapour deposition technique. Furthermore, hysteretic effects are analysed in Chapter 6 for the perovskite PV devices fabricated based on different structural configurations. An interesting discovery involving the temporary functioning of compact layer-free perovskite PV devices suggests the presence of a built-in-field responsible for the hysteresis of the cells. The observations made in this chapter yield a new understanding of the functionality of individual cell layers. Combining the advantages of the optimum vapour deposition technique established in Chapter 4 and Chapter 5, with the enhanced understanding of perovskite PV cell operational mechanism acquired from Chapter 6, an ongoing study on an “all-perovskite” tandem solar cell is introduced in Chapter 7. This demonstration of the “all-perovskite” tandem devices confirms the versatility of perovskites for a broader range of PV applications.
4

Syed, Ali Asgher. "Hole extraction layer/perovskite interfacial modification for high performing inverted planar perovskite solar cells." HKBU Institutional Repository, 2018. https://repository.hkbu.edu.hk/etd_oa/553.

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Organo-metallic halide perovskite solar cells (PSCs) are considered as a promising alternative photovoltaic technology due to the advantages of low-cost solution fabrication capability and high power conversion efficiency (PCE). PSCs can be made using a conventional (n-i-p) structure and an inverted (p-i-n) configuration. PCE of the conventional p-i-n type PSCs is slightly higher than that of the inverted n-i-p type PSCs. However, the TiO2 electron transporting layer adopted in the conventional PSCs is formed at a high sintering temperature of >450 °C. The TiO2 electron transporting layer limits the application of conventional PSCs using flexible substrates that are not compatible with the high processing temperature. The hole extraction layer (HEL) in the inverted p-i-n type PSCs can be prepared by low-temperature solution fabrication processes, which can be adopted for achieving high performance large area flexible solar cells at a low cost. Inverted PSCs with a PCE range from 10 to 20% have been reported over the past few years. In comparison with the progresses of other photovoltaic technologies, the rapid enhancement in PCE of the PSCs offers an attractive option for commercial viability. The aim of this PhD project is to study the origin of the improvement in the performance of solution-processable inverted PSCs. The surface morphological and electronic properties of the HEL are crucial for the growth of the perovskite active layer and hence the performance of the inverted PSCs. Enhancement in short circuit current density (Jsc), reduced loss in open circuit voltage (Voc), improvement in cha Organo-metallic halide perovskite solar cells (PSCs) are considered as a promising alternative photovoltaic technology due to the advantages of low-cost solution fabrication capability and high power conversion efficiency (PCE). PSCs can be made using a conventional (n-i-p) structure and an inverted (p-i-n) configuration. PCE of the conventional p-i-n type PSCs is slightly higher than that of the inverted n-i-p type PSCs. However, the TiO2 electron transporting layer adopted in the conventional PSCs is formed at a high sintering temperature of >450 °C. The TiO2 electron transporting layer limits the application of conventional PSCs using flexible substrates that are not compatible with the high processing temperature. The hole extraction layer (HEL) in the inverted p-i-n type PSCs can be prepared by low-temperature solution fabrication processes, which can be adopted for achieving high performance large area flexible solar cells at a low cost. Inverted PSCs with a PCE range from 10 to 20% have been reported over the past few years. In comparison with the progresses of other photovoltaic technologies, the rapid enhancement in PCE of the PSCs offers an attractive option for commercial viability. The aim of this PhD project is to study the origin of the improvement in the performance of solution-processable inverted PSCs. The surface morphological and electronic properties of the HEL are crucial for the growth of the perovskite active layer and hence the performance of the inverted PSCs. Enhancement in short circuit current density (Jsc), reduced loss in open circuit voltage (Voc), improvement in charge collection efficiency (ηcc) through suppression of charge recombination were investigated systematically via controlled growth of the perovskite active layer in solution-processed inverted PSCs. Poly (3,4-ethylenedioxythiophene): poly (4-styrenesulfonate) (PEDOT:PSS) is one of the widely used solution processable conductive materials for hole transporting in different optoelectronic devices. PEDOT:PSS HEL also is a perfect electron blocking layer due to its high LUMO level. However, it has been reported that PEDOT:PSS HEL is related to the deterioration in the stability of PSCs due to its acidic and hygroscopic nature. Modification of PEDOT:PSS using solvent additives or incorporating metallic oxide nanoparticles for improving the processability and the performance of the inverted PSCs were reported. This work has been focused primary on realizing the controlled growth of perovskite active layer via HEL/perovskite interfacial modification using sodium citrate-treated PEDOT:PSS HEL and WO3-PEDOT:PSS composite HEL. Apart from investigating the properties of the modified PEDOT:PSS HELs, the purpose of the work is to improve the understanding of the effect of modified HEL on the growth of the perovskite layer, revealing the charge recombination processes under different operation conditions, analyzing change extraction probability, and thereby improving the overall performance of the PSCs. PCE of >11.30% was achieved for PSCs with a sodium citrate-modified PEDOT:PSS HEL, which is >20% higher than that of a structurally identical control device having a pristine PEDOT:PSS HEL (9.16%). The incident photon to current efficiency (IPCE) and light intensity-dependent J-V measurements reveal that the use of the sodium citrate-modified PEDOT:PSS HEL helps to boost the performance of the inverted PSCs in two ways: (1) it improves the processability of perovskite active layer on HEL, and (2) it enables to enhance the charge extraction efficiency at the HEL/perovskite interface. The suppression of charge recombination in the PSCs with a modified HEL also was examined using photocurrent-effective voltage (Jph-Veff) and transient photocurrent (TPC) measurements. Morphological and structural properties of the perovskite layers were investigated using the scanning electron microscope (SEM) and X-ray diffraction (XRD) measurements. The results reveal that high quality perovskite active layer on the modified HEL was attained forming complete perovskite phase. The surface electronic properties of the modified PEDOT:PSS and pristine PEDOT:PSS layers were studied using X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS) measurements. XPS results reveal that treatment of sodium citrate partially removes the PSS unit in the PEDOT:PSS, resulting in an increase in the ratio of PEDOT to PSS from 0.197 for a treated PEDOT:PSS HEL to that of 0.108 for the pristine PEDOT:PSS HEL. UPS measurements also show that there is an observable reduction in the work function of the modified HEL, implying that sodium citrate-modified PEDOT:PSS HEL possesses an improved electron blocking capability, which is beneficial for efficient operation of the inverted PSCs.;The performance enhancement in MAPbI3-based PSCs with a tungsten oxide (WO3)-PEDOT:PSS composite HEL also was analyzed. The uniform composite WO3-PEDOT:PSS HEL was formed on indium tin oxide (ITO) surface by solution fabrication process. The morphological and surface electronic properties of WO3-PEDOT:PSS composite film were examined using AFM, XPS, UPS and Raman Spectroscopy. SEM images reveal that the perovskite films grown on the composite HEL had a full coverage without observable pin holes. XRD results show clearly that no residual of lead iodide phase was observed, suggesting a complete perovskite phase was obtained for the perovskite active layer grown on the composite HEL. The volume ratio of WO3 to PEDOT:PSS of 1:0.25 was optimized for achieving enhanced current density and Voc in the PSCs. It is demonstrated clearly that the use of the WO3-PEDOT:PSS composite HEL helps to improve the charge collection probability through suppression of the charge recombination at the MAPbI3/composite HEL interface. The charge extraction efficiency at the perovskite/PEDOT:PSS and perovskite/composite HEL interfaces were investigated by analyzing the PL quenching efficiency of the MAPbI3 active layer. It is shown that the PL efficiency quenching at the MAPbI3/composite HEL samples is one order of magnitude higher than that measured for the perovskite/pristine PEDOT:PSS sample, suggesting an enhanced hole extraction probability at the MAPbI3/composite HEL interface. The combined effects of improved perovskite crystal growth and enhanced charge extraction capabilities result in the inverted PSCs with a PCE of 12.65%, which is 22% higher than that of a structurally identical control device (10.39%). The use of the WO3-PEDOT:PSS composite HEL also benefits the efficient operation of the PSCs, demonstrated in the stability test, as compared to that of the control cell under the same aging conditions. With the progresses made in improving the performance of MAPbI3-based PSCs, the research was extended to study the performance of efficient PSCs with mixed halide of MA0.7FA0.3Pb (I0.9Br0.1)3. The effect of the annealing temperature on the growth of the mixed MA0.7FA0.3Pb (I0.9Br0.1)3 perovskite active layer was analyzed. It was found that the optimal growth of the mixed perovskite active layer occurred at an annealing temperature of 100°C. UPS results reveal that the ionization potential of 5.76 eV measured for the mixed cation perovskite is lower than that of MAPbI3-based single cation perovskite layer (5.85 eV), while the corresponding electron affinity of the mixed perovskite was 4.28 eV and that for the MAPbI3 layer was 4.18 eV, respectively. The changes in the bandgap and the energy levels of the MA0.7FA0.3Pb (I0.9Br0.1)3 and MAPbI3 active layers were examined using UV-vis absorption spectroscopy and UPS measurements. Compared to the MAPbI3-based control cell, a 23% increase in Jsc, a 15% increase in Voc and an overall 25% increase in PCE for the MA0.7FA0.3Pb (I0.9Br0.1)3 were achieved as compared to that of the MAPbI3-based PSCs. An obvious improvement in charge collection efficiency in MA0.7FA0.3Pb (I0.9Br0.1)3-based PSCs operated at different Veff was clearly manifested by the light intensity dependent J-V characteristic measurements. PL quenching efficiency also shows the charge transfer between MA0.7FA0.3Pb (I0.9Br0.1)3 and PEDOT:PSS HEL is one order of magnitude higher as compare to that in the MAPbI3-based PSCs, suggesting the formation of improved interfacial properties at the MA0.7FA0.3Pb (I0.9Br0.1)3/HEL interface. The impact of incorporating mixed MA0.7FA0.3Pb (I0.9Br0.1)3 perovskite active layer on PCE and the stability of the PSCs was further studied using a combination of TPC measurement and aging test. The stability of MA0.7FA0.3Pb (I0.9Br0.1)3- and MAPbI3-based PSCs with respect to the aging time was monitored for a period of >2 months. The MA0.7FA0.3Pb (I0.9Br0.1)3-based PSCs are more stable compared to the MAPbI3-based PSCs aged under the same conditions. The aging test supports the findings made with the TPC and light intensity dependent J-V measurements. It shows that the improved interfacial quality at the perovskite/HEL and the enhanced charge extraction capability are favorable for efficient and stable operation of MA0.7FA0.3Pb (I0.9Br0.1)3-based PSCs.
5

Fournier, Olivier Jaques Henri. "Effects of the interfaces in planar hybrid lead trihalide perovskite solar cells with n-type and p-type inorganic charge transport layers." Thesis, KTH, Energiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-246122.

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Perovskite-solceller är en framväxande och lovande tunnfilmsteknik, som uppnådde hög effektivitet på en ofantlig kort tid. Den nuvarande arkitekturen i cellen, som innefattar titanoxid och Spiro-OMeTAD (en organisk förening) som laddningstransportlager (CTL), saknar stabilitet och visar hysteretiskt beteende. För att bedöma dessa stora problem utvecklas oorganiska CTL i PV-samhället. I detta arbete utförs en grundlig översyn av litteraturen om dessa oorganiska CTL. Fyra av dem identifieras som bra kandidater på grund av de höga prestanda de uppnådde och deras kemiska stabilitet: SnO2, ZnO, CuSCN och NiO. Betydelsen av gränssnitten i denna typ av cell visas också. Numerisk simulering av CTLs utförs också med ett dedikerat 1D-modelleringsverktyg (SCAPS), vilket gör att vi kan föreslå viktiga parametrar för att optimera i en CTL. Slutligen studeras effekterna av gränssnittet på prestanda hos en perovskit-solcell med hyperspektral avbildning av cellens fotoluminescensrespons. Med hjälp av en korrekt passningsalgoritm ger denna icke-destruktiva metod insikt om de opto-elektroniska egenskaperna hos perovskiten som odlas på olika substrat.
Perovskite solar cells are an emerging and promising thin film technology, which reached high efficiencies in an unprecedented short time. However, the current architecture of the cell, which includes titanium oxide and Spiro-OMeTAD (an organic compound) as charge transport layers (CTLs), lacks stability and shows hysteretic behavior. In order to assess these major issues, inorganic CTLs are developed in the PV community. This work performs a thorough review of the literature regarding these inorganic CTLs. Four of them are identified as good candidates because of the high performances they reached, and of their chemical stability: SnO2, ZnO, CuSCN and NiO. The significance of the interfaces in this kind of cell is also demonstrated.  Numerical simulation of CTLs is also performed using a dedicated 1D modelisation tool (SCAPS), which allows us to propose key parameters to optimize in a CTL. Finally, the effects of the interface on the performances of a perovskite solar cell are studied with hyperspectral imaging of photoluminescence response of the cell. Using a proper fit algorithm, this non-destructive method gives insight into the opto-electronic properties of the perovskite grown on different substrates.
6

Ulfa, Maria. "Nouveaux contacts sélectifs pour des cellules à pérovskites hybrides très efficaces." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEC005.

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Ce travail de thèse porte sur la réalisation de cellules solaires photovoltaïques à pérovskites hybrides efficaces, stables et reproductibles et vise à bien comprendre le fonctionnement de ces cellules. Au chapitre 1, nous présentons le contexte de la recherche sur les cellules solaires et nous décrivons les techniques utilisées pour la caractérisation des dispositifs. Le chapitre 2 propose une étude comparative de deux techniques différentes (une étape et deux étapes) pour la préparation de couches de CH3NH3PbI3. Il est montré que les deux conviennent à la préparation de PSC performantes. Au chapitre 3, nous étudions les deux principaux types de matériaux de transport de trous organiques: moléculaires et polymères. Nous étudions également l’effet des dopants sur ces HTM. Grâce à la spectroscopie d'impédance, nous avons pu voir clairement pourquoi le dopage est important pour obtenir une haute efficacité des cellules Spiro-OMeTAD alors que l'amélioration est plus faible dans le cas des cellules P3HT. Au chapitre 4, nous examinons plusieurs nouveaux dérivés du carbazole comme matériaux transporteurs de trous. Ces molécules allaient du gros noyau dendritique B186 aux séries DM et iDM ayant une masse moléculaire inférieure. B186 et iDM1 ont donné les meilleurs rendements à 14.59% et 15.04%, respectivement. Enfin, dans le chapitre 5, SnO2 est étudié comme couche bloquante des trous. Des cellules planaires ont ensuite été préparées en utilisant cette couche combinée aux pérovskites MAPI (1) -SOF et FAMA. Avec le FAMA, les dispositifs étaient très efficaces avec un rendement maximum de 18,2% et une quasi-absence d'hystérésis (6,7% IH), alors qu'avec MAPI(1)-SOF, le résultat était de 15,2% avec une hystérésis plus élevée
This thesis work aimed at realizing efficient, stable, and reproducible photovoltaic perovskite solar cells, and to achieve a good understanding of the cells functioning. In Chapter 1, we present the context of the research on solar cells and PSC components as well as a description of the main techniques employed for the device characterizations. Chapter 2 provides a comparative study of two different CH3NH3PbI3 deposition techniques (1-step and 2-step). It is clear that both of them are suitable for the preparation of PSC which resulted in more than 17% PCE. In Chapter 3, we have thoroughly studied the two main kinds of organic hole transporting materials: molecular and polymeric. We have also investigated the doping effect on these HTMs. Through impedance spectroscopy measurement, we could clearly see that doping is really important to get high efficiency for Spiro-OMeTAD cells, while the improvement was less significant in the case of P3HT cells. In Chapter 4, we have investigated several new carbazole derivatives as hole transporting materials. These molecules ranged from the big dendritic core B186 to the DMs and iDMs series with lower molecular weight. B186 and iDM1 showed the highest efficiency at 14.59% and 15.04%, respectively. In Chapter 5, we have studied a simple planar structure of PSC by incorporating a wide bandgap n-type semiconductor SnO2 as the hole blocking layer. Planar cells have been prepared using this layer combined with MAPI(1)-SOF and FAMA perovskites. With FAMA absorber, the devices were highly efficient with a maximum PCE of 18.2% and were almost hysteresis-free (6.7% HI) while, with MAPI(1)-SOF, the obtained efficiency was 15.2% with higher hysteresis
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Eperon, Giles E. "Active layer control for high efficiency perovskite solar cells." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:1fa78aab-7479-4fe2-8192-e1be1d12c171.

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The work documented in this thesis concerns the control and modification of semiconducting perovskite thin films for their use in perovksite solar cells (PSCs). PSCs are a promising new thin-film technology, offering both high solar to electricity conversion efficiencies and cheap fabrication costs. Herein, the boundaries of perovskite solar cell research are pushed further by tackling several challenges important to the field. Initially, this work focuses on understanding why the best PSCs made so far have been mesostructured devices, with the perovskite infiltrated into a scaffold. It is shown that this can be seen as simply a fabrication aid; without the scaffold, thin films easily dewet from the substrate. By understanding the crucial parameters important in carefully controlling this dewetting, it is minimised, and it is shown that scaffold-free planar heterojunction devices with high efficiencies can be fabricated. This work leads on to the next section; the development of semi-transparent perovskite solar cells. In their present state, PSCs cannot compete with silicon as stand-alone modules. Here, the morphological control has been leveraged to realise a different embodiment – semi-transparent perovskite devices for use in building-integrated photovoltaics. Competitive efficiency and transparency are demonstrated. Moreover, a hybrid self-tinting power-generating window concept is fabricated, by combining the photovoltaic and electrochromic technologies. In the third section of the thesis, the limitations of the most studied perovskite material, methylammonium lead halide, are addressed: its overly wide bandgap and thermal instability. To address these, the chemical constituents of the perovksite are altered, and the development of more efficient and more stable materials are reported. These are likely to be important for perovskite modules to pass international certification requirements for commercialisation. Finally, an in-depth study on the effect of ambient moisture, relevant for considering scale-up and the fabrication environment needed, is carried out. It is shown that the presence of some moisture during film fabrication allows a reduction of defect states in the perovskite material, enhancing device performance and film quality.
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Nandayapa, Bermudez Edgar Ricardo. "Metal Halide Perovskites: Photophysics and Inkjet Printing of Solar Cells." Doctoral thesis, Humboldt-Universität zu Berlin, 2021. http://dx.doi.org/10.18452/23121.

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Metallhalogenid-Perowskite (MHPs) sind Halbleiter, die einzigartige photophysikalische Eigenschaften aufweisen, die sie ideal für photovoltaische Anwendungen machen. Techniken werden kontinuierlich entwickelt, um die Leistungsgrenzen der Perowskite weiter zu verschieben. Dennoch weisen diese Materialien verschiedene Herausforderungen auf. Zu diesen gehören eine geringe Stabilität unter einer Vielzahl von äußeren Bedingungen, sowie eine große Diskrepanz zwischen den Wirkungsgraden von Geräten im Labormaßstab und großflächigen Geräten. Zunächst wurden mit Hilfe von Photolumineszenz-Spektroskopie Ladungsübertragungsmechanismen zwischen MHPs und atmosphärischen Gasen untersucht, um deren Einfluss auf die Materialstabilität zu bestimmen. Durch den Vergleich der Emission von verschiedene MHP wurde die Wirkung untersucht, die atmosphärische Gase auf Grenzdefekte im Material haben. Diese Löschungseffekte wurden nachfolgend mit dem Stern-Volmer-Modell analysiert. Es stellte sich heraus, dass ein Teil von der Gase bindet jedoch an die MHPs, wobei teilweise Kristalldefekte passiviert werden und für jedes der Gase Ladungstransfermechanismen vorgeschlagen wurden. Zweitens wurde die Skalierung von MHP-Bauelementen mittels Tintenstrahldruck untersucht. Dazu wurden drei Kristallisationstechniken ausgewertet. Eine davon verwendete eine sequenzielle Abscheidung von zwei Präkursortinten, während die beiden anderen kristallisierte Tinten verwendeten, die in einem Schritt abgeschieden wurden. Die letztgenannten Techniken verwendeten beide niedrige Drücke und bei einer wurde ein kontrollierter Stickstoffstrom auf die Probe angewendet. Solarzellen mit einer Effizienz von 16,8% auf einer Fläche von 0,16 cm² wurden demonstriert. Diese Ergebnisse zeigen ein neuartiges Verfahren zur Untersuchung von strahlungslosen Verlustwegen in MHPs auf. Zusätzlich demonstrieren diese Studien, dass der Tintenstrahldruck eine geeignete Technologie ist, um MHP-Bauelemente zu skalieren.
Metal halide perovskites (MHPs) are semiconductor materials that show unique photophysical properties, making them ideal for photovoltaic applications. Having shown power conversion efficiencies of up to 25.5%, techniques are continuously being developed to push perovskites to unprecedent limits. Yet, these materials present challenges like a low stability under a variety of conditions as well as a large disparity between the efficiencies of lab scale and large area devices. This thesis addresses these two major obstacles. First, charge transfer mechanisms between MHPs and atmospheric gases were studied to determine their effect on the material stability by using photoluminescence spectroscopy. By comparing the emission of MHPs, the effect that molecular oxygen, nitrogen, argon, and water have on boundary defects in the material was studied. These quenching effects were later analyzed using the Stern-Volmer model. It was found that the gases bounce off the surface, but a portion of them bind to the MHPs, in occasions passivating defects on the crystals. Using these results, charge transfer mechanisms were proposed for each one of the gases. Second, scaling of MHP devices was examined using inkjet printing. For this, three crystallization techniques were evaluated. One of them used sequential deposition of two precursor inks, while the other two crystallized ink that was deposited in one step. Both latter techniques used low pressures, below 1 mbar, and only one of them applied a controlled stream of nitrogen to the sample. Using these techniques, the deposition of a 15x15 cm² area as well as a device with an efficiency of 16.8% on an area of 0.16 cm² were demonstrated. These results show a novel procedure to study non-radiative loss paths in MHPs to enhance their stability and performance as devices. Also, they show that inkjet printing is a favorable technology to scale MHP devices and eventually facilitate the mass production of this type of photovoltaic devices.
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Gheno, Alexandre. "Printable and printed perovskites photovoltaic solar cells for autonomous sensors network." Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0108/document.

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Ce travail de thèse a pour sujet la conception des cellules solaires photovoltaïques à base de pérovskite hybride par le biais de la technologie d’impression jet d’encre. Les deux premiers chapitres font la présentation du contexte de la thèse, à savoir l’alimentation d’un réseau autonome de capteurs, et passent en revue les aspects scientifiques des technologies jet d’encre et photovoltaïque de nouvelle génération. Le troisième chapitre présente la mise au point d’une cellule photovoltaïque à l’état de l’art et son évolution vers une architecture imprimable à basse température de recuit. La problématique de la stabilité des cellules photovoltaïques à pérovskite est aussi abordée. La dernière partie présente les différents aspects et problématiques de l’impression par jet d’encre des trois couches internes d’une cellule solaire pérovskite. Au terme de ce travail la possibilité d’imprimer des cellules solaires pérovskites avec des rendements supérieurs à 10 % a été démontrée, le tout en condition ambiante et à basse température
This thesis is about the design of photovoltaic solar cells based on hybrid perovskite using inkjet printing technology. The first two chapters present the context of the thesis, namely the powering of an autonomous sensor network, and review the scientific aspects of inkjet and photovoltaic technologies. The third chapter presents the development of a state-of-the-art photovoltaic cell and its evolution towards a printable architecture at low annealing temperatures. The problem of the stability of photovoltaic cells with perovskite is also discussed. The last part presents the different aspects and problems of the inkjet printing of the three inner layers of a perovskite solar cell. At the end of this work the possibility of printing perovskite solar cells with efficiencies higher than 10% has been demonstrated, all in ambient conditions and at low temperature
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Marronnier, Arthur. "Anharmonicity and Instabilities in Halide Perovskites for Last Generation Solar Cells." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLX031/document.

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Les pérovskites hybrides halogénées (ABX3) sont utilisées depuis cinq ans comme couches absorbantes pour de nouvelles cellules solaires à bas coût combinant les avantages des matériaux organiques (molécule A) et inorganiques (métal B et halogène X). Très récemment, des cellules solaires à boîtes quantiques à bases de pérovskites purement inorganiques ont également montré des efficacités prometteuses, ce qui en fait une alternative potentiellement stable et efficace à leurs cousins hybrides.Le but de cette thèse de doctorat est d'étudier et de mieux comprendre les instabilités structurelles et thermodynamiques de ces pérovskites halogénées, avec un focus sur la pérovskite purement inorganique CsPbI3.Dans un premier temps les propriétés vibrationnelles et électroniques des différentes phases de CsPbI3 sont étudiées grâce à différentes techniques ab-initio, dont la plupart sont basées sur la théorie de la fonctionnelle de la densité (DFT) et son approche en réponse linéaire (DFPT). Alors que la phase γ noire, cruciale pour les applications photovoltaïques, se comporte de manière harmonique autour de l'équilibre, pour les trois autres phases nos calculs de phonons froids révèlent une instabilité de double puits au centre de la zone de Brillouin. Nos calculs montrent également que le terme d'entropie d'ordre-désordre lié à ce double puits est crucial pour empêcher la formation de la phase pérovskitoïde jaune. Nous analysons ensuite en détail les changements structurels et l’effet Rashba dynamique le long de trajectoires de dynamique moléculaire à la lumière de ces résultats.La seconde partie de la thèse porte sur la stabilité thermodynamique de la pérovskite hybride MAPbI3. Notre étude expérimentale par ellipsométrie apporte une meilleure compréhension de la décomposition chimique de MAPbI3 en ses deux précurseurs, l’iodure de méthylamonium et l'iodure de plomb, que nous avons prédite grâce à des calculs de diagrammes de stabilité DFT et que nous confirmons par diffraction des rayons X. Enfin, nous démontrons que la pérovskite hybride MAPbI3 se comporte davantage comme les composés inorganiques (grande constante diélectrique, faible énergie de liaison des excitons) que comme les matériaux organiques (faible constante diélectrique, forte énergie de liaison d'exciton)
Hybrid halide perovskites (ABX3) have emerged over the past five years as absorber layers for novel high-efficiency low-cost solar cells combining the advantages of organic (molecule A) and inorganic (metal B, halogen X) materials. Very recently, fully inorganic perovskite quantum dots also shown promising efficiencies, making them a potentially stable and efficient alternative to their hybrid cousins.The aim of this PhD thesis is to study and better understand both the structural and thermodynamic instabilities of these halide perovskites, with a specific focus on purely inorganic CsPbI3 structures.We first use various ab-initio techniques, the majority of which are based on Density Functional Theory (DFT) and its linear-response approach (DFPT), to investigate the vibrational and electronic properties of the different phases of CsPbI3. While the black γ-phase, crucial for photovoltaic applications, is shown to behave harmonically around equilibrium, for the other three phases frozen phonon calculations reveal a Brillouin zone center double-well instability. We also show that avoiding the order-disorder entropy term arising from these double-well instabilities is key in order to prevent the formation of the yellow perovskitoid phase, and evidence a Rashba effect when using the symmetry breaking structures obtained through frozen phonon calculations. We then analyze the structural changes and the dynamical Rashba splitting along molecular dynamics trajectories in the light of our findings.In a second phase, we investigate the thermodynamical stability of hybrid perovskite MAPbI3. Our experimental ellipsometry-based study brings better understanding of the chemical decomposition of MAPbI3 into its two precursors, methylammonium and lead iodides, which we predicted using DFT stability diagram calculations and which we confirm by X-Ray diffraction. Last, we prove that hybrid perovskite structure MAPbI3 behaves more like inorganic compounds (high dielectric constant, low exciton binding energy) than like organic materials (low dielectric constant, high exciton binding energy)
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Books on the topic "Planar perovskites solar cells":

1

Bisquert, Juan. Physics of Solar Cells: Perovskites, Organics, and Photovoltaic Fundamentals. Taylor & Francis Group, 2017.

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Bisquert, Juan. Physics of Solar Cells: Perovskites, Organics, and Photovoltaic Fundamentals. Taylor & Francis Group, 2017.

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Giorgi, Giacomo, and Koichi Yamashita. Theoretical Modeling of Organohalide Perovskites for Photovoltaic Applications. Taylor & Francis Group, 2017.

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Book chapters on the topic "Planar perovskites solar cells":

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You, Jingbi, Lei Meng, Ziruo Hong, Gang Li, and Yang Yang. "Inverted Planar Structure of Perovskite Solar Cells." In Organic-Inorganic Halide Perovskite Photovoltaics, 307–24. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-35114-8_12.

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Lee, Jin-Wook, Hui-Seon Kim, and Nam-Gyu Park. "APbI3 (A = CH3NH3 and HC(NH2)2) Perovskite Solar Cells: From Sensitization to Planar Heterojunction." In Organic-Inorganic Halide Perovskite Photovoltaics, 223–53. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-35114-8_9.

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Fu, Kunwu, Anita Wing Yi Ho-Baillie, Hemant Kumar Mulmudi, and Pham Thi Thu Trang. "Double Perovskites." In Perovskite Solar Cells, 245–50. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429469749-17.

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Fu, Kunwu, Anita Wing Yi Ho-Baillie, Hemant Kumar Mulmudi, and Pham Thi Thu Trang. "Tin-Based Perovskites." In Perovskite Solar Cells, 221–34. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429469749-14.

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Fu, Kunwu, Anita Wing Yi Ho-Baillie, Hemant Kumar Mulmudi, and Pham Thi Thu Trang. "Germanium-Based Perovskites." In Perovskite Solar Cells, 235–38. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429469749-15.

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Fu, Kunwu, Anita Wing Yi Ho-Baillie, Hemant Kumar Mulmudi, and Pham Thi Thu Trang. "Copper-Based Perovskites." In Perovskite Solar Cells, 239–44. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429469749-16.

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Fu, Kunwu, Anita Wing Yi Ho-Baillie, Hemant Kumar Mulmudi, and Pham Thi Thu Trang. "Bismuth-Based Perovskites." In Perovskite Solar Cells, 251–60. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429469749-18.

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Fu, Kunwu, Anita Wing Yi Ho-Baillie, Hemant Kumar Mulmudi, and Pham Thi Thu Trang. "Antimony-Based Perovskites." In Perovskite Solar Cells, 261–68. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429469749-19.

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Todorov, Teodor K., Oki Gunawan, and Supratik Guha. "Halide Perovskite Tandem Solar Cells." In Halide Perovskites, 183–97. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527800766.ch2_05.

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Boix, Pablo P., Sonia R. Raga, and Nripan Mathews. "Working Principles of Perovskite Solar Cells." In Halide Perovskites, 81–99. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527800766.ch2_01.

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Conference papers on the topic "Planar perovskites solar cells":

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Fan, Xin, Xiaoli Peng, Shu Zhang, and Yong Xiang. "Fabrication of planar heterojunction perovskite solar cells." In 2014 International Symposium on Next-Generation Electronics (ISNE). IEEE, 2014. http://dx.doi.org/10.1109/isne.2014.6839359.

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Baumann, Andreas, Mathias Fischer, Kristofer Tvingstedt, and Vladimir Dyakonov. "Doping profile in planar perovskite solar cells." In 10th International Conference on Hybrid and Organic Photovoltaics. Valencia: Fundació Scito, 2018. http://dx.doi.org/10.29363/nanoge.hopv.2018.101.

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Yamamoto, K., Md Shahiduzzaman, Y. Furumoto, T. Kuwabara, K. Takahashi, and T. Taima. "Degradation Mechanism for Planar Heterojunction Perovskite Solar Cells." In 2015 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2015. http://dx.doi.org/10.7567/ssdm.2015.c-1-4.

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Gill, Hardeep Singh, Akshay Kokil, Lian Li, Ravi Mosurkal, and Jayant Kumar. "Solution processed flexible planar hybrid perovskite solar cells." In SPIE Organic Photonics + Electronics, edited by Zakya H. Kafafi, Paul A. Lane, and Ifor D. W. Samuel. SPIE, 2014. http://dx.doi.org/10.1117/12.2061405.

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Taima, Tetsuya, Kohei Yamamoto, Md Shahiduzzaman, Yoshikazu Furumoto, Takayuki Kuwabara, and Kohshin Takahashi. "Planar heterojunction perovskite solar cells fabricated by wet process." In SPIE OPTO, edited by Christopher E. Tabor, François Kajzar, Toshikuni Kaino, and Yasuhiro Koike. SPIE, 2017. http://dx.doi.org/10.1117/12.2257204.

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Qin, Chuanjiang, Toshinori Matsushima, and Chihaya Adachi. "Degradation mechanism of planar perovskite solar cells (Presentation Recording)." In SPIE Organic Photonics + Electronics, edited by Zakya H. Kafafi, Paul A. Lane, and Ifor D. W. Samuel. SPIE, 2015. http://dx.doi.org/10.1117/12.2187578.

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Lee, Jinho, Soonil Hong, Eunhag Lee, Hongkyu Kang, and Kwanghee Lee. "Interface engineering for large-area planar perovskite solar cells (Conference Presentation)." In Organic, Hybrid, and Perovskite Photovoltaics XVIII, edited by Kwanghee Lee, Zakya H. Kafafi, and Paul A. Lane. SPIE, 2017. http://dx.doi.org/10.1117/12.2273845.

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PARK, TAIHO. "Thermally Stable, Planar Hybrid Perovskite Solar Cells with High Efficiency." In 4th Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics. València: Fundació Scito, 2019. http://dx.doi.org/10.29363/nanoge.iperop.2020.015.

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Shahiduzzaman, M., H. Ashikawa, M. Kuniyoshi, S. Visal, T. Kaneko, T. Katsumata, T. Taima, S. Iwamori, M. Isomura, and K. Tomita. "Highly Efficient Planar Perovskite Solar Cells Utilizing Electron Transport Bilayer." In 2018 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2018. http://dx.doi.org/10.7567/ssdm.2018.ps-6-13.

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Gong, Jiawei, and Sumathy Krishnan. "Simulation of Inverted Perovskite Solar Cells." In ASME 2018 12th International Conference on Energy Sustainability collocated with the ASME 2018 Power Conference and the ASME 2018 Nuclear Forum. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/es2018-7227.

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A planar perovskite solar cell (PSC) with p-i-n inverted structure was modeled and simulated to determine the power output characteristics under illumination. The performance of inverted PSC device was correlated to the thickness of the absorber layer, band alignment, and electrical properties of the hole transport materials (HTMs). Our simulation indicates that, with an optimized absorber layer thickness ∼300 nm, an efficiency of 18% can be achieved. This baseline device was further utilized to investigate the role of band offset between the HTM and absorber layer. Results show that the device efficiency can be improved to 24% when the work function of HTM is reduced to 0.1 eV lower than the valence band edge of perovskite. Parametric studies were carried out to compare the feasibility of five different HTMs including spiro-OMeTAD, Cu2O, CuSCN, NiO, and CuI. Among them, NiO is the most promising candidate with a theoretical efficiency limit up to 27%. This work would serve as a modeling frame to simulate and interpret the performance of inverted PSCs and suggest further device optimization strategies.

Reports on the topic "Planar perovskites solar cells":

1

Timmons, Michael L. Light-Weight, Low Cost, High-Efficiency Solar Cells Space Planar Arrays. Fort Belvoir, VA: Defense Technical Information Center, January 1996. http://dx.doi.org/10.21236/adb209013.

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