Academic literature on the topic 'Non-fullerene acceptor (NFA)'

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Journal articles on the topic "Non-fullerene acceptor (NFA)"

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Jiang, Yuanyuan, and Xiaozhang Zhu. "High-Performance Ternary Organic Solar Cells Enabled by Synergizing Fullerene and Non-fullerene Acceptors." Organic Materials 03, no. 02 (2021): 254–76. http://dx.doi.org/10.1055/a-1472-3989.

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With the development of the non-fullerene acceptors (NFAs), the use of ternary organic photovoltaic devices based on a fullerene acceptor and a NFA is now widespread, and the merits of both acceptor types can be fully utilized. However, the effective approach of enhancing device performance is adjusting the charge dynamics and the thin-film morphology of the active layer via introducing the second acceptor, which would significantly impact the open-circuit voltage, the short-circuit current, and the fill factor, thus strongly affecting device efficiency. The functions of the second acceptor in
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Im, Chan, Sang-Woong Kang, Jeong-Yoon Choi, and Jongdeok An. "Comparing Donor- and Acceptor-Originated Exciton Dynamics in Non-Fullerene Acceptor Blend Polymeric Systems." Polymers 13, no. 11 (2021): 1770. http://dx.doi.org/10.3390/polym13111770.

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Non-fullerene type acceptors (NFA) have gained attention owing to their spectral extension that enables efficient solar energy capturing. For instance, the solely NFA-mediated absorbing region contributes to the photovoltaic power conversion efficiency (PCE) as high as ~30%, in the case of the solar cells comprised of fluorinated materials, PBDB-T-2F and ITIC-4F. This implies that NFAs must be able to serve as electron donors, even though they are conventionally assigned as electron acceptors. Therefore, the pathways of NFA-originated excitons need to be explored by the spectrally resolved pho
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Hasenburg, Franziska H., Kun-Han Lin, Bas van der Zee, Paul W. M. Blom, Denis Andrienko, and Gert-Jan A. H. Wetzelaer. "Ambipolar charge transport in a non-fullerene acceptor." APL Materials 11, no. 2 (2023): 021105. http://dx.doi.org/10.1063/5.0137073.

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Charge transport is one of the key factors in the operation of organic solar cells. Here, we investigate the electron and hole transport in the non-fullerene acceptor (NFA) IT-4F, by a combination of space-charge-limited current measurements and multiscale molecular simulations. The electron and hole mobilities are fairly balanced, amounting to 2.9 × 10−4 cm2 V−1 s−1 for electrons and 2.0 × 10−5 cm2 V−1 s−1 for holes. Orientational ordering and electronic couplings facilitate a better charge-percolating network for electrons than for holes, while ambipolarity itself is due to sufficiently high
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Yang, Qing, Xuan Liu, Shuwen Yu, et al. "Hydroxylated non-fullerene acceptor for highly efficient inverted perovskite solar cells." Energy & Environmental Science 14, no. 12 (2021): 6536–45. http://dx.doi.org/10.1039/d1ee02248b.

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A hydroxylated non-fullerene acceptor (NFA) is developed to modify the interface between the perovskite and the electron transport layer in inverted perovskite solar cells (i-PSCs), achieving a record PCE of 22.09% among reported i-PSCs employing NFAs.
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Zhang, Jie, Yunjie Xiang, and Shaohui Zheng. "From Y6 to BTPT-4F: a theoretical insight into the influence of the individual change of fused-ring skeleton length or side alkyl chains on molecular arrangements and electron mobility." New Journal of Chemistry 45, no. 27 (2021): 12247–59. http://dx.doi.org/10.1039/d1nj01515j.

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Datt, Ram, Harrison Ka Hin Lee, Michael Spence, Matthew Carnie, and Wing Chung Tsoi. "High performance non-fullerene organic photovoltaics under implant light illumination region." Applied Physics Letters 122, no. 14 (2023): 143906. http://dx.doi.org/10.1063/5.0144861.

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Implantable biomedical electronics, such as pacemakers, drug pumps, cochlear implants, cardioverter-defibrillators, and neurological stimulators, help humans to overcome various diseases. Currently, the power supply for these devices relies on small-size batteries, and replacement of the battery is required after running for a period of time. Recharging the battery could be a way to prolong the replacement cycle. Organic photovoltaics (OPVs) are a class of emerging photovoltaics, which are now becoming more practical with recently developed device and material engineering. The absorption of OP
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Grant, Trevor M., Chloé Dindault, Nicole A. Rice, Sufal Swaraj, and Benoît H. Lessard. "Synthetically facile organic solar cells with >4% efficiency using P3HT and a silicon phthalocyanine non-fullerene acceptor." Materials Advances 2, no. 8 (2021): 2594–99. http://dx.doi.org/10.1039/d1ma00165e.

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We demonstrate organic photovoltaic devices with extremely low synthetic complexity by pairing poly(3-hexithiophene) (P3HT) with a novel non-fullerene acceptor (NFA) bis(tri-n-propylsilyl oxide) silicon phthalocyanine ((3PS)<sub>2</sub>-SiPc).
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Lu, Qiuchen, Ming Qiu, Meiyu Zhao, Zhuo Li, and Yuanzuo Li. "Modification of NFA-Conjugated Bridges with Symmetric Structures for High-Efficiency Non-Fullerene PSCs." Polymers 11, no. 6 (2019): 958. http://dx.doi.org/10.3390/polym11060958.

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As electron acceptors, non-fullerene molecules can overcome the shortcomings of fullerenes and their derivatives (such as high cost, poor co-solubility, and weak light absorption). The photoelectric properties of two potential non-fullerene polymer solar cells (PSCs) PBDB-T:IF-TN (PB:IF) and PBDB-T:IDT-TN (PB:IDT) are studied by density functional theory (DFT) and time-dependent DFT (TD-DFT). Based on the optimized structure of the ground state, the effects of the electron donor (D) and electron acceptor (A) (D/A) interfaces PBDB-T/IF-TN (PB/IF) and PBDB-T/IDT-TN (PB/IDT) are studied by a quan
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Li, Yang, Wei Huang, Dejiang Zhao, et al. "Recent Progress in Organic Solar Cells: A Review on Materials from Acceptor to Donor." Molecules 27, no. 6 (2022): 1800. http://dx.doi.org/10.3390/molecules27061800.

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In the last few decades, organic solar cells (OSCs) have drawn broad interest owing to their advantages such as being low cost, flexible, semitransparent, non-toxic, and ideal for roll-to-roll large-scale processing. Significant advances have been made in the field of OSCs containing high-performance active layer materials, electrodes, and interlayers, as well as novel device structures. Particularly, the innovation of active layer materials, including novel acceptors and donors, has contributed significantly to the power conversion efficiency (PCE) improvement in OSCs. In this review, high-pe
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Yang, Chenyi, Shaoqing Zhang, Junzhen Ren, et al. "Molecular design of a non-fullerene acceptor enables a P3HT-based organic solar cell with 9.46% efficiency." Energy & Environmental Science 13, no. 9 (2020): 2864–69. http://dx.doi.org/10.1039/d0ee01763a.

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Dissertations / Theses on the topic "Non-fullerene acceptor (NFA)"

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Diarra, Cheick Oumar. "Modélisation par dynamique moléculaire ab initio du transport des excitons et du transport thermique dans les semiconducteurs organiques pour la collecte d'énergie." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAD013.

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L'exciton joue un rôle clé dans le fonctionnement des cellules solaires organiques (OSCs). Comprendre sa dynamique dans les semiconducteurs organiques est essentiel, notamment pour améliorer la longueur de diffusion, une propriété déterminante pour la performance des hétérojonctions planaires, envisagées comme une alternative plus stable aux hétérojonctions en volume (BHJ). Dans la première partie de cette thèse, nous avons développé une approche méthodologique robuste et polyvalente pour évaluer la longueur de diffusion de l'exciton dans les semiconducteurs organiques. Cette approche, basée s
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Althobaiti, Wejdan. "Photophysics of Poly(3-hexylthiophene):Non-Fullerene Acceptor Organic Solar Cells." Thesis, 2021. http://hdl.handle.net/10754/670709.

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Insight into the relationship between the Ionization Energy (IE) offsets between donor and acceptor materials and the performance of the organic solar cells (OSC) could improve the charge generation efficiency. Charge generation can proceed through two different paths in Bulk Heterojunction (BHJ) based OSCs which are electron transfer from donor to acceptor and hole transfer from acceptor to donor. Electron transfer can be controlled by electron affinities and hole transfer can be controlled by ionization energies. In this work, large IE offsets were investigated in poly(3-hexylthiophene-2,5-d
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Conference papers on the topic "Non-fullerene acceptor (NFA)"

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Moons, Ellen, Vanja Blazinic, André Johansson, Cleber Marchiori, Leif K. E. Ericsson, and C. Moyses Araujo. "Photo-oxidation of a non-fullerene acceptor polymer." In NFA-Based Organic Solar Cells: Materials, Morphology and Fundamentals. Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.nfasc.2021.009.

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Shoaee, Safa. "Pathways To Reduced-Recombination in Fullerene and Non-Fullerene Acceptor Solar Cells." In NFA-Based Organic Solar Cells: Materials, Morphology and Fundamentals. Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.nfasc.2021.005.

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Seifrid, Martin, Steve Halaby, Michael Martynowycz, et al. "Microcrystal Electron Diffraction for Molecular Design of Functional Non-Fullerene Acceptor Structures." In NFA-Based Organic Solar Cells: Materials, Morphology and Fundamentals. Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.nfasc.2021.006.

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Müller, Christian. "Glass Transition Temperature and Thermal Stability of Non-Fullerene Acceptor Based Solar Cells." In NFA-Based Organic Solar Cells: Materials, Morphology and Fundamentals. Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.nfasc.2021.014.

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Gorenflot, Julien, Frédéric Laquai, Yuliar Firdaus, et al. "Ultrafast Energy Transfer Triggers Ionization Energy Offset Dependence of Quantum Efficiency in Low-bandgap Non-fullerene Acceptor Solar Cells." In NFA-Based Organic Solar Cells: Materials, Morphology and Fundamentals. Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.nfasc.2021.002.

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Kim, Prof Ji-Seon. "Key Impact of Molecular Structure and Orientation of Non-Fullerene Acceptors on Organic Photoconversion Devices." In Solar Energy and Light-Emitting Devices. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/seled.2023.stu1d.2.

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Organic photoconversion devices such as organic photovoltaic (OPV) and photodetectors (OPD) are attracting significant attention due to their potential to be lightweight, flexible, non-toxic, and compatible with large-scale manufacturing. In particular, the development of the new small molecule-based non-fullerene acceptors (NFAs) has enabled OPVs to show remarkable improvements in device efficiency. Although promising, there is still a lack of clear understanding of the impact of molecular structure and orientation of NFAs on photophysical processes critical for device performance.
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Chen, Hongzheng. "Low Cost and Highly Efficient Organic Solar Cells by Designing New Non-Fullerene Acceptors." In NFA-Based Organic Solar Cells: Materials, Morphology and Fundamentals. Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.nfasc.2021.016.

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