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Journal articles on the topic 'Two-Dimensional metal halide perovskites'

Author: Grafiati

Published: 24 June 2023

Last updated: 25 July 2025

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1

Kumar, Navneet, Dhwani Gaur, Keerti Chauhan, Mehruba Khan, Sonu, and Akanksha Sandhu. "Two-Dimensional Halide Perovskites for Heavy Metal Ions Sensing." Bulletin of Pure and Applied Sciences-Chemistry 42, no. 1 (2023): 46–50. http://dx.doi.org/10.48165/bpas.2023.42c.1.8.

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This report focuses on the exceptional trait of using perovskite halide sensing method in relation to sensing of heavy metal ions. Metal halide perovskite (MHP), which exhibits excellent sensing properties, is now considered as an efficient sensing material. We first describe the sensing of metal halides perovskites in metal halide. Next, performance improvement strategies focused on tuning of sensing properties for sensing metal ions. A new two-dimensional (2D) lead perovskite, B2An-1PbnX3n+1, exhibits impressive water resistance when in contact with water while retaining the real crystal arr

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2

Hartati, Sri, Pramitha Yuniar Diah Maulida, Taufiq Zakly, et al. "Vibrational and Structural Properties of Two-Dimensional Tin Mixed-Halide Perovskites." Nano Hybrids and Composites 40 (July 31, 2023): 1–6. http://dx.doi.org/10.4028/p-kaxs1n.

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The emergence of two-dimensional (2D) hybrid metal-halide perovskites has garnered significant attentions for optoelectronic devices and light-emitting applications. Since the toxicity of lead-based perovskites could potentially be harmful to the environment, several works have attempted to change the active metal to tin (Sn). Here, we investigate the characterization of (PEA)2SnBrxI4-x mixed halide perovskites using X-ray fluorescence (XRF), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. Qualitative XRF analysis suggests the presence of tin, bromine and iodine em

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3

Kamat, Prashant V., and Gabor Szabo. "(Keynote) Controlling Ion Migration in Metal Halide Perovskites for Better Solar Cell Stability." ECS Meeting Abstracts MA2024-02, no. 19 (2024): 1719. https://doi.org/10.1149/ma2024-02191719mtgabs.

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The ability to tune the bandgap of metal halide perovskites through compositional alloying of the halide ion is of interest in designing tandem solar cells and light emitting displays. However, photoinduced migration of halide ions can significantly affect the device performance. One such property is photoinduced phase segregation in mixed halide perovskites (MHP), which forms bromide rich and iodide-rich domains. These domains act as charge carrier traps and lower the efficiency of perovskite-based devices.[1,2] The thermodynamic and redox properties of halide perovskites provide a strong dri

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4

Lu, Yangbin, Kang Qu, Tao Zhang, Qingquan He, and Jun Pan. "Metal Halide Perovskite Nanowires: Controllable Synthesis, Mechanism, and Application in Optoelectronic Devices." Nanomaterials 13, no. 3 (2023): 419. http://dx.doi.org/10.3390/nano13030419.

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Metal halide perovskites are promising energy materials because of their high absorption coefficients, long carrier lifetimes, strong photoluminescence, and low cost. Low-dimensional halide perovskites, especially one-dimensional (1D) halide perovskite nanowires (NWs), have become a hot research topic in optoelectronics owing to their excellent optoelectronic properties. Herein, we review the synthetic strategies and mechanisms of halide perovskite NWs in recent years, such as hot injection, vapor phase growth, selfassembly, and solvothermal synthesis. Furthermore, we summarize their applicati

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5

Cheng, Dan, Zhaohai Yang, and Yilan Liang. "Preparation and Energy Storage Performance of Perovskite Luminescent Materials by an Electrochemiluminescence Method." Adsorption Science & Technology 2022 (October 3, 2022): 1–10. http://dx.doi.org/10.1155/2022/3092941.

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In recent years, metal halide perovskites have become attractive photosensitive materials due to their excellent optoelectronic properties. Due to its good characteristics, perovskites are used in solar photovoltaic power generation, light-emitting diodes, photodetectors, photocatalysis, and sensors and many other fields. Considering the wide application of perovskites and the study of potential bifunctional devices, the application of perovskites in energy storage devices is relatively small, and a small number of studies focus on organic-inorganic hybrid lead-halide perovskites. However, the

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6

Mathew, Preethi Susan, and Prashant V. Kamat. "Halide Ion Migration in 2D Metal Halide Perovskites." ECS Meeting Abstracts MA2023-01, no. 14 (2023): 1336. http://dx.doi.org/10.1149/ma2023-01141336mtgabs.

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Two-dimensional (2D) halide perovskites have drawn attention for their unique optoelectronic properties. Interestingly, Ruddlesden-Popper 2D mixed-halide perovskite films with spacer cations such as butylammonium and Dion-Jacobson 2D mixed-halide perovskite films with 1,4-phenylenedimethanammonium undergo halide segregation under irradiation. Anions become mobile under steady state irradiation to form I-rich and Br-rich domains. Upon ceasing illumination, film reverts to their original, mixed-halide compositions, establishing the reversibility of the phase segregation phenomenon. However, if f

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7

Cheng, Lu, Chang Yi, Yunfang Tong, et al. "Halide Homogenization for High-Performance Blue Perovskite Electroluminescence." Research 2020 (December 24, 2020): 1–10. http://dx.doi.org/10.34133/2020/9017871.

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Metal halide perovskite light-emitting diodes (LEDs) have achieved great progress in recent years. However, bright and spectrally stable blue perovskite LED remains a significant challenge. Three-dimensional mixed-halide perovskites have potential to achieve high brightness electroluminescence, but their emission spectra are unstable as a result of halide phase separation. Here, we reveal that there is already heterogeneous distribution of halides in the as-deposited perovskite films, which can trace back to the nonuniform mixture of halides in the precursors. By simply introducing cationic su

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8

Jin, Song. "(Invited) Metal Halide Perovskite Heterostructures: Synthesis and Fundamental Charge Transfer Studies." ECS Meeting Abstracts MA2023-02, no. 34 (2023): 1635. http://dx.doi.org/10.1149/ma2023-02341635mtgabs.

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Metal halide perovskites are inexpensive semiconductor materials promising for high performance solar cells and light emitting diodes (LEDs) because they are easy to synthesize and tolerant of defects. Fundamental understanding of the factors controlling the carrier transfer mechanisms in heterostructures of halide perovskites is crucial for guiding the synthetic strategies to improve properties and device applications. We developed new methods for synthesizing nanostructures of both three-dimensional (3D) perovskites and two-dimensional (2D) Ruddlesden–Popper (RP) layered perovskites, and usi

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9

Niu, Tianqi, Qifan Xue, and Hin-Lap Yip. "Advances in Dion-Jacobson phase two-dimensional metal halide perovskite solar cells." Nanophotonics 10, no. 8 (2020): 2069–102. http://dx.doi.org/10.1515/nanoph-2021-0052.

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Abstract Low-dimensional metal halide perovskites have emerged as promising alternatives to the traditional three-dimensional (3D) components, due to their greater structural tunability and environmental stability. Dion-Jacobson (DJ) phase two-dimensional (2D) perovskites, which are formed by incorporating bulky organic diammonium cations into inorganic frameworks that comprises a symmetrically layered array, have recently attracted increasing research interest. The structure-property characteristics of DJ phase perovskites endow them with a unique combination of photovoltaic efficiency and st

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10

Zhang, Yibo, Zhenze Zhao, Zhe Liu, and Aiwei Tang. "The Scale Effects of Organometal Halide Perovskites." Nanomaterials 13, no. 22 (2023): 2935. http://dx.doi.org/10.3390/nano13222935.

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Organometal halide perovskites have achieved great success in solution-processed photovoltaics. The explorations quickly expanded into other optoelectronic applications, including light-emitting diodes, lasers, and photodetectors. An in-depth analysis of the special scale effects is essential to understand the working mechanisms of devices and optimize the materials towards an enhanced performance. Generally speaking, organometal halide perovskites can be classified in two ways. By controlling the morphological dimensionality, 2D perovskite nanoplatelets, 1D perovskite nanowires, and 0D perovs

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11

Jagielski, Jakub, Sudhir Kumar, Wen-Yueh Yu, and Chih-Jen Shih. "Layer-controlled two-dimensional perovskites: synthesis and optoelectronics." Journal of Materials Chemistry C 5, no. 23 (2017): 5610–27. http://dx.doi.org/10.1039/c7tc00538e.

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12

Seitz, Michael, Patricia Gant, Andres Castellanos-Gomez, and Ferry Prins. "Long-Term Stabilization of Two-Dimensional Perovskites by Encapsulation with Hexagonal Boron Nitride." Nanomaterials 9, no. 8 (2019): 1120. http://dx.doi.org/10.3390/nano9081120.

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Metal halide perovskites are known to suffer from rapid degradation, limiting their direct applicability. Here, the degradation of phenethylammonium lead iodide (PEA2PbI4) two-dimensional perovskites under ambient conditions was studied using fluorescence, absorbance, and fluorescence lifetime measurements. It was demonstrated that the long-term stability of two-dimensional perovskites could be achieved through the encapsulation with hexagonal boron nitride. While un-encapsulated perovskite flakes degraded within hours, the encapsulated perovskites were stable for at least three months. In add

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13

Dou, Letian. "(Invited) Two-Dimensional Organic-Perovskite Hybrid Materials and Heterostructures." ECS Meeting Abstracts MA2024-01, no. 12 (2024): 1001. http://dx.doi.org/10.1149/ma2024-01121001mtgabs.

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Epitaxial heterostructures based on oxide perovskites and III–V, II–VI and transition metal dichalcogenide semiconductors form the foundation of modern electronics and optoelectronics. Halide perovskites—an emerging family of tunable semiconductors with desirable properties—are attractive for applications such as solution-processed solar cells, light-emitting diodes, detectors and lasers. Their inherently soft crystal lattice allows greater tolerance to lattice mismatch, making them promising for heterostructure formation and semiconductor integration. Atomically sharp epitaxial interfaces are

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14

Han, Dan, Hongliang Shi, Wenmei Ming, et al. "Unraveling luminescence mechanisms in zero-dimensional halide perovskites." Journal of Materials Chemistry C 6, no. 24 (2018): 6398–405. http://dx.doi.org/10.1039/c8tc01291a.

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Zero-dimensional (0D) halides perovskites, in which anionic metal-halide octahedra (MX<sub>6</sub>)<sup>4−</sup> are separated by organic or inorganic countercations, have recently shown promise as excellent luminescent materials.

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15

Xing, Yifeng, Jialin Yin, Yifei Qiao, et al. "Gram-Scale Synthesis and Optical Properties of Self-Trapped-Exciton-Emitting Two-Dimensional Tin Halide Perovskites." Nanomaterials 15, no. 11 (2025): 818. https://doi.org/10.3390/nano15110818.

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Lead halide perovskites (LHPs) have superior luminescent properties, but their toxicity hinders their commercialization, arousing interests in tin halide perovskites as environmentally friendly substitutes for LHPs. Herein, we synthesized a series of two-dimensional tin halide perovskite ODASnBr4-xIx (ODA denotes 1,8-octanediammonium, X = 0, 1, 2, 3, 4) microcrystals via an aqueous-phase method. The differences between ODASnI4 and ODASnBr4 in luminescent properties and morphological characteristics were systematically discussed for the first time and attributed to light-driven ligand-to-metal

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16

Wang, Yi-Hsiang, Cheng-Hsien Yeh, I.-Ta Hsieh, et al. "Comparative Study of the Orientation and Order Effects on the Thermoelectric Performance of 2D and 3D Perovskites." Nanomaterials 14, no. 5 (2024): 446. http://dx.doi.org/10.3390/nano14050446.

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Calcium titanium oxide has emerged as a highly promising material for optoelectronic devices, with recent studies suggesting its potential for favorable thermoelectric properties. However, current experimental observations indicate a low thermoelectric performance, with a significant gap between these observations and theoretical predictions. Therefore, this study employs a combined approach of experiments and simulations to thoroughly investigate the impact of structural and directional differences on the thermoelectric properties of two-dimensional (2D) and three-dimensional (3D) metal halid

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17

Shao, Wenhao, Jeong Hui Kim, Jeffrey Simon, et al. "Molecular templating of layered halide perovskite nanowires." Science 384, no. 6699 (2024): 1000–1006. http://dx.doi.org/10.1126/science.adl0920.

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Layered metal-halide perovskites, or two-dimensional perovskites, can be synthesized in solution, and their optical and electronic properties can be tuned by changing their composition. We report a molecular templating method that restricted crystal growth along all crystallographic directions except for [110] and promoted one-dimensional growth. Our approach is widely applicable to synthesize a range of high-quality layered perovskite nanowires with large aspect ratios and tunable organic-inorganic chemical compositions. These nanowires form exceptionally well-defined and flexible cavities th

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18

Kim, Young-Hoon, Himchan Cho, and Tae-Woo Lee. "Metal halide perovskite light emitters." Proceedings of the National Academy of Sciences 113, no. 42 (2016): 11694–702. http://dx.doi.org/10.1073/pnas.1607471113.

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Twenty years after layer-type metal halide perovskites were successfully developed, 3D metal halide perovskites (shortly, perovskites) were recently rediscovered and are attracting multidisciplinary interest from physicists, chemists, and material engineers. Perovskites have a crystal structure composed of five atoms per unit cell (ABX3) with cation A positioned at a corner, metal cation B at the center, and halide anion X at the center of six planes and unique optoelectronic properties determined by the crystal structure. Because of very narrow spectra (full width at half-maximum ≤20 nm), whi

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19

Szabo, Gabor, Preethi Susan Mathew, and Prashant V. Kamat. "(Invited) Ion Migration Influencing Perovskite Solar Cell Performance and Stability." ECS Meeting Abstracts MA2024-01, no. 13 (2024): 1086. http://dx.doi.org/10.1149/ma2024-01131086mtgabs.

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The thermodynamic and redox properties of halide perovskites provide a strong driving force for hole trapping and oxidation of iodide species. When in contact with a non-polar solvent, the migration of iodine species is further extended to expulsion of iodine from the perovskite film. Thus, the mobility of halides and their susceptibility to hole-induced oxidation play a crucial role in determining the long-term stability of metal halide perovskite solar cells. When Ruddlesden-Popper 2D mixed-halide perovskite films with spacer cations such as butylammonium are introduced into three-dimensiona

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20

Srimath Kandada, Ajay Ram, and Carlos Silva. "Exciton Polarons in Two-Dimensional Hybrid Metal-Halide Perovskites." Journal of Physical Chemistry Letters 11, no. 9 (2020): 3173–84. http://dx.doi.org/10.1021/acs.jpclett.9b02342.

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21

Giri, Ashutosh, Alexander Z. Chen, Alessandro Mattoni, et al. "Ultralow Thermal Conductivity of Two-Dimensional Metal Halide Perovskites." Nano Letters 20, no. 5 (2020): 3331–37. http://dx.doi.org/10.1021/acs.nanolett.0c00214.

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22

Huo, Chengxue, Bo Cai, Zhao Yuan, Biwu Ma, and Haibo Zeng. "Two-Dimensional Metal Halide Perovskites: Theory, Synthesis, and Optoelectronics." Small Methods 1, no. 3 (2017): 1600018. http://dx.doi.org/10.1002/smtd.201600018.

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23

Wang, Fangfang, Qing Chang, Yikai Yun, et al. "Hole-Transporting Low-Dimensional Perovskite for Enhancing Photovoltaic Performance." Research 2021 (May 28, 2021): 1–11. http://dx.doi.org/10.34133/2021/9797053.

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Halide perovskites with low-dimensionalities (2D or quasi-2D) have demonstrated outstanding stabilities compared to their 3D counterparts. Nevertheless, poor charge-transporting abilities of organic components in 2D perovskites lead to relatively low power conversion efficiency (PCE) and thus limit their applications in photovoltaics. Here, we report a novel hole-transporting low-dimensional (HT2D) perovskite, which can form a hole-transporting channel on the top surface of 3D perovskite due to self-assembly effects of metal halide frameworks. This HT2D perovskite can significantly reduce inte

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24

Liu, Qing-Wei, Shuai Yuan, Shuang-Qiao Sun, et al. "Interfacial engineering for highly efficient quasi-two dimensional organic–inorganic hybrid perovskite light-emitting diodes." Journal of Materials Chemistry C 7, no. 15 (2019): 4344–49. http://dx.doi.org/10.1039/c8tc06490c.

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25

Huangfu, Xuefeng, Junyu Chen, Gaohui Ge, et al. "2D/3D Perovskite Surface Passivation-Enabled High-Detectivity Near-Infrared Photodiodes." Sensors 25, no. 9 (2025): 2740. https://doi.org/10.3390/s25092740.

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Due to high responsivity and wide spectral sensitivity, metal halide perovskite photodiodes have a wide range of applications in the fields of visible light and near-infrared photodetection. Specific detectivity is an important quality factor for high-performance perovskite-based photodiodes, while one of the keys to achieving high detectivity is to reduce dark current. Here, 3-fluoro phenethylammonium iodide (3F-PEAI) was used to passivate the perovskite surface and form the two-dimensional (2D) perovskite on the three-dimensional (3D) perovskite surface. The as-fabricated passivated perovski

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26

Chen, Fengjiao, Liting Li, Xiong Shen, et al. "Different temperature-dependent fluorescence properties of CsPbBr₃ nanorods and nanowires." Journal of Physics: Conference Series 2842, no. 1 (2024): 012019. http://dx.doi.org/10.1088/1742-6596/2842/1/012019.

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Abstract The morphology of totally inorganic metal halide perovskites has a certain influence on their optoelectronic properties. In this study, one-dimensional CsPbBr3 nanorods (NRs) and nanowires (NWs) were arranged utilizing a boiling injection strategy. By controlling the processing time, NRs with a length of roughly 63 nm and NWs with a length of 300 nm were obtained, and it was found that the nanowires were grown from the nanorods. Temperature-dependent photoluminescence (PL) measurements were conducted on CsPbBr3 NRs and NWs, and NRs exhibit a more stable excitonic state at high tempera

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27

Bao, Jiming. "(Invited) Exploring and Manipulating Luminescence Centers in Lead Halide Perovskites through Hydrostatic Pressure." ECS Meeting Abstracts MA2024-01, no. 22 (2024): 1339. http://dx.doi.org/10.1149/ma2024-01221339mtgabs.

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The application of hydrostatic pressure to materials induces changes in lattice constants, vibrational spectra, and electron-phonon interactions, thereby altering the optoelectronic properties of semiconductors. Consequently, hydrostatic pressure has become a widely utilized tool for investigating and enhancing the optical properties of organic/inorganic halide perovskites and their nanostructures. In this presentation, I will discuss the impact of hydrostatic pressure on two distinct types of luminescence centers in perovskite materials. The first type of luminescence centers originates from

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Zhou, Chenkun, Haoran Lin, Qingquan He, et al. "Low dimensional metal halide perovskites and hybrids." Materials Science and Engineering: R: Reports 137 (July 2019): 38–65. http://dx.doi.org/10.1016/j.mser.2018.12.001.

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29

Jagadeeswararao, Metikoti, Raquel E. Galian, and Julia Pérez-Prieto. "Photocatalysis Based on Metal Halide Perovskites for Organic Chemical Transformations." Nanomaterials 14, no. 1 (2023): 94. http://dx.doi.org/10.3390/nano14010094.

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Heterogeneous photocatalysts incorporating metal halide perovskites (MHPs) have garnered significant attention due to their remarkable attributes: strong visible-light absorption, tuneable band energy levels, rapid charge transfer, and defect tolerance. Additionally, the promising optical and electronic properties of MHP nanocrystals can be harnessed for photocatalytic applications through controlled crystal structure engineering, involving composition tuning via metal ion and halide ion variations, dimensional tuning, and surface chemistry modifications. Combination of perovskites with other

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30

Baranowski, Michał, Mateusz Dyksik, and Paulina Płochocka. "2D Metal Halide Perovskites: A New Fascinating Playground for Exciton Fine Structure Investigations." Scientiae Radices 01, no. 01 (2022): 3–25. http://dx.doi.org/10.58332/v22i1a01.

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Two-dimensional (2D) metal halide perovskites are natural quantum wells which consist of low bandgap metal-halide slabs, surrounded by organic spacers barriers. The quantum and dielectric confinements provided by the organic part lead to the extreme exciton binding energy which results in a huge enhancement of exciton fine structure in this material system. This makes 2D perovskites a fascinating playground for fundamental excitonic physics studies. In this review, we summarize the current understanding and quantification of the exciton fine structure in 2D perovskites. We discuss what is the

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31

Ben Haj Salah, Maroua, Justine Tessier, Nicolas Mercier, et al. "A 3D Lead Iodide Hybrid Based on a 2D Perovskite Subnetwork." Crystals 11, no. 12 (2021): 1570. http://dx.doi.org/10.3390/cryst11121570.

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Lead halide perovskites have emerged as promising materials for various optoelectronic applications. For photovoltaics, the reference compound is the 3D perovskite (MA)PbI3 (MA+ = methylammonium). However, this material suffers from instabilities towards humidity or light. This makes the search of new stable 3D lead halide materials very relevant. A strategy is the use of intermediate size cations instead of MA, which are not suitable to form the 3D ABX3 perovskites or 2D perovskites. Here, we report on a novel 3D metal halide hybrid material based on the intermediate size cation hydroxypropyl

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32

Wang, Suqin, Hui Zhu, Ming Sheng, et al. "Achieving Ultralong Room-Temperature Phosphorescence in Two-Dimensional Metal-Halide Perovskites by Tuning Alkyl Chain Length." Inorganics 13, no. 4 (2025): 108. https://doi.org/10.3390/inorganics13040108.

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Two-dimensional (2D) metal-halide perovskites with highly efficient room-temperature phosphorescence (RTP) are rare due to their complex structures and intricate intermolecular interactions. In this study, by varying the alkyl chain length in organic amines, we synthesized two 2D metal-halide perovskites, namely 4-POMACC and 4-POEACC, both of which exhibit significant RTP emission. Notably, 4-POMACC demonstrates a stronger green RTP emission with a significantly longer lifetime (254 ms) and a higher photoluminescence quantum yield (9.5%) compared to 4-POEACC. A thorough investigation of struct

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Zhang, Lu, Yucheng Liu, Zhou Yang, and Shengzhong (Frank) Liu. "Two dimensional metal halide perovskites: Promising candidates for light-emitting diodes." Journal of Energy Chemistry 37 (October 2019): 97–110. http://dx.doi.org/10.1016/j.jechem.2018.12.005.

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Heidari Gourji, Fatemeh, and Dhayalan Velauthapillai. "A Review on Cs-Based Pb-Free Double Halide Perovskites: From Theoretical and Experimental Studies to Doping and Applications." Molecules 26, no. 7 (2021): 2010. http://dx.doi.org/10.3390/molecules26072010.

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Despite the progressive enhancement in the flexibility of Pb-based perovskites for optoelectronic applications, regrettably, they are facing two main challenges; (1) instability, which originates from using organic components in the perovskite structure, and (2) toxicity due to Pb. Therefore, new, stable non-toxic perovskite materials are demanded to overcome these drawbacks. The research community has been working on a wide variety of Pb-free perovskites with different molecular formulas and dimensionality. A variety of Pb-free halide double perovskites have been widely explored by different

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Shi, Yue, Yu Zhou, Zhiwei Ma, Guanjun Xiao, Kai Wang, and Bo Zou. "Structural regulation and optical behavior of three-dimensional metal halide perovskites under pressure." Journal of Materials Chemistry C 8, no. 37 (2020): 12755–67. http://dx.doi.org/10.1039/d0tc02796k.

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Mavuso, Mlungisi Arnold, and Mandla Msimanga. "Mitigating Environmental Effects in Halide Perovskites through Hybrid Perovskite-Polymer Nanocomposites: A Short Review." Photonics 10, no. 11 (2023): 1242. http://dx.doi.org/10.3390/photonics10111242.

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Metal halide perovskites are currently making notable strides in the development of next-generation optoelectronic and photovoltaic devices. Prototype lab-based devices have exhibited high efficiencies for photovoltaic applications. However, the high performance cannot be maintained for practically useful lengths of time due to degradation of the perovskite layer on exposure to environmental factors such as moisture, oxygen, and heat. This limits the widespread use of these materials in commercial devices. This review of hybrid perovskite-polymer nanocomposites begins by highlighting the signi

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Johannes, M. Richter, Federico Branchi, V. A. Camargo Franco, et al. "Ultrafast carrier interactions in metal-halide perovskites probed with two-dimensional electronic spectroscopy." EPJ Web of Conferences 205 (2019): 04012. http://dx.doi.org/10.1051/epjconf/201920504012.

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We use 2D electronic spectroscopy with sub-10-fs resolution to probe carrier-carrier scattering in perovskites. We report excitation-density dependent thermalization times below 100-fs. Strong coupling with excitonic states further reveals sub-bandgap states with low oscillator strength.

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Barua, Pranta, and Inchan Hwang. "Bulk Perovskite Crystal Properties Determined by Heterogeneous Nucleation and Growth." Materials 16, no. 5 (2023): 2110. http://dx.doi.org/10.3390/ma16052110.

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In metal halide perovskites, charge transport in the bulk of the films is influenced by trapping and release and nonradiative recombination at ionic and crystal defects. Thus, mitigating the formation of defects during the synthesis process of perovskites from precursors is required for better device performance. An in-depth understanding of the nucleation and growth mechanisms of perovskite layers is crucial for the successful solution processing of organic–inorganic perovskite thin films for optoelectronic applications. In particular, heterogeneous nucleation, which occurs at the interface,

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Li, Yumin, Yutian Lei, Haoxu Wang, and Zhiwen Jin. "Two-Dimensional Metal Halides for X-Ray Detection Applications." Nano-Micro Letters 15, no. 1 (2023). http://dx.doi.org/10.1007/s40820-023-01118-1.

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AbstractMetal halide perovskites have recently emerged as promising candidates for the next generation of X-ray detectors due to their excellent optoelectronic properties. Especially, two-dimensional (2D) perovskites afford many distinct properties, including remarkable structural diversity, high generation energy, and balanced large exciton binding energy. With the advantages of 2D materials and perovskites, it successfully reduces the decomposition and phase transition of perovskite and effectively suppresses ion migration. Meanwhile, the existence of a high hydrophobic spacer can block wate

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Han, Mingyue, Yingrui Xiao, Chao Zhou, et al. "Recent Advances on Two-Dimensional Metal Halide Perovskite X-Ray Detectors." Materials Futures, February 8, 2023. http://dx.doi.org/10.1088/2752-5724/acba36.

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Abstract In recent years, two-dimensional metal halide perovskites have attracted increased attention for radiation detection and imaging. Their detection efficiencies are almost comparable to three-dimensional perovskites. Meanwhile, they demonstrate superior stability to three-dimensional perovskites. The pursuit of high-quality, phase-pure and lead-free two-dimensional metal halide perovskite materials and large-area fabrication capability for X-ray detectors are among the research hotspots. In this review, we first give a brief introduction of the crystallographic structure, optoelectronic

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Liao, Chwenhaw, Md Arafat Mahmud, and Anita Wing Yi Ho-Baillie. "Recent progress in layered metal halide perovskite for solar cells, photodetectors, and field-effect transistors." Nanoscale, 2023. http://dx.doi.org/10.1039/d2nr06496k.

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Metal halide perovskite materials demonstrate immense potentials for photovoltaic and electronic applications. Two-dimensional (2D) layered metal halide perovskites are more promising for such optoelectronic applications than their 3D counterparts due...

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Aamir, Muhammad, Muhammad Ejaz Khan, Qamar Wali, et al. "Color-Tunable Stable Quasi-2D Hybrid Metal Halide Perovskites: Synthesis, Characterization, and Optical Analysis." Physical Chemistry Chemical Physics, 2024. http://dx.doi.org/10.1039/d3cp05563a.

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Metal halide perovskites have remarkable optical properties and useful applications, however, the instability of three-dimensional (3D) metal halide perovskites limits their applications, leading to the emergence of more stable two-dimensional...

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Zhang, Jianfeng, Cheng Yan, Haifeng Zhao, Chunyang Yin, and Sai Bai. "Modulations of Quasi‐Two‐Dimensional Metal Halide Perovskites toward High‐Performance Blue Light‐Emitting Diodes." Advanced Functional Materials, June 25, 2025. https://doi.org/10.1002/adfm.202509226.

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AbstractQuasi‐two‐dimensional (quasi‐2D) perovskites are promising candidates for blue light‐emitting diodes (LEDs) because of their combined quantum‐ and dielectric‐confinement effects. By judiciously controlling the material components and phase distributions, it is more feasible to modulate the wavelength of quasi‐2D perovskite emitters to desired pure‐blue emission for display applications compared with the widely investigated mixed‐halide 3D perovskites and colloidal quantum dots with ultra‐small sizes. Employing quasi‐2D perovskites is also advantageous in circumventing the severe phase

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Kostopoulou, Athanasia, Ioannis Konidakis, and Emmanuel Stratakis. "Two-dimensional metal halide perovskites and their heterostructures: from synthesis to applications." Nanophotonics, March 22, 2023. http://dx.doi.org/10.1515/nanoph-2022-0797.

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Abstract Size- and shape-dependent unique properties of the metal halide perovskite nanocrystals make them promising building blocks for constructing various electronic and optoelectronic devices. These unique properties together with their easy colloidal synthesis render them efficient nanoscale functional components for multiple applications ranging from light emission devices to energy conversion and storage devices. Recently, two-dimensional (2D) metal halide perovskites in the form of nanosheets (NSs) or nanoplatelets (NPls) are being intensively studied due to their promising 2D geometry

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Li, Shunran, Xian Xu, Conrad A. Kocoj, et al. "Large exchange-driven intrinsic circular dichroism of a chiral 2D hybrid perovskite." Nature Communications 15, no. 1 (2024). http://dx.doi.org/10.1038/s41467-024-46851-2.

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AbstractIn two-dimensional chiral metal-halide perovskites, chiral organic spacers endow structural and optical chirality to the metal-halide sublattice, enabling exquisite control of light, charge, and electron spin. The chiroptical properties of metal-halide perovskites have been measured by transmissive circular dichroism spectroscopy, which necessitates thin-film samples. Here, by developing a reflection-based approach, we characterize the intrinsic, circular polarization-dependent complex refractive index for a prototypical two-dimensional chiral lead-bromide perovskite and report large c

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Schmitz, Fabian, and Teresa Gatti. "Large cation engineering in two-dimensional silver-bismuth bromide double perovskites." May 28, 2021. https://doi.org/10.5281/zenodo.7015285.

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Double perovskites are promising candidates for less toxic and highly stable metal halide perovskites, but their optoelectronic performances still lag behind those of the lead halide counterpart, due to the indirect nature of the bandgap and the strong electron–phonon coupling. Reducing the dimensionality of Cs<sub>2</sub>AgBiBr<sub>6</sub> down to a 2D layered form is strategic in order to tune the band gap from indirect to direct and provides new insights into the structure–property relationships of double perovskites. Herein, we report on a series of monolayer 2D hybrid dou

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Zhang, Yixin, Mojtaba Abdi‐Jalebi, Bryon W. Larson, and Fei Zhang. "What Matters for the Charge Transport of Two‐Dimensional Perovskites?" Advanced Materials, May 23, 2024. http://dx.doi.org/10.1002/adma.202404517.

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AbstractCompared to three‐dimensional (3D) perovskites, two‐dimensional (2D) perovskites exhibit excellent stability, structural diversity, and tunable bandgaps, making them highly promising for applications in solar cells, light‐emitting diodes and photodetectors. However, the trade‐off for worse charge transport is a critical issue that needs to be addressed. This comprehensive review first discusses the structure of 3D and 2D metal halide perovskites, then summarizes the significant factors influencing charge transport in detail and provides a brief overview of the testing methods. Subseque

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Laref, Rachid, Florian Massuyeau, and Romain Gautier. "Role of Hydrogen Bonding on the Design of New Hybrid Perovskites Unraveled by Machine Learning." Small, September 27, 2023. http://dx.doi.org/10.1002/smll.202306481.

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AbstractSelecting a set of reactants to accurately design a new low dimensional hybrid perovskite could greatly accelerate the discovery of materials with great potential in photovoltaics, or solid‐state lighting. However, this design is challenging as most hybrid metal halides are not perovskites and no feature is clearly associated to the structural characteristics of the inorganic metal halide network. This work first demonstrates that the organic molecules are key parameters to determine the structure type of the inorganic network (i.e., perovskite versus non‐perovskite). Then, machine lea

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Seitz, Michael, Alvaro J. Magdaleno, Nerea Alcázar-Cano, et al. "Exciton diffusion in two-dimensional metal-halide perovskites." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-15882-w.

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Liu, He, Tunde Blessed Shonde, Oluwadara Joshua Olasupo, et al. "Solution Processed Bilayer Metal Halide White Light Emitting Diodes." Advanced Materials, November 6, 2024. http://dx.doi.org/10.1002/adma.202412239.

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AbstractMetal halide perovskites and perovskite‐related organic metal halide hybrids (OMHHs) have recently emerged as a new class of luminescent materials for light emitting diodes (LEDs), owing to their unique and remarkable properties, including near‐unity photoluminescence quantum efficiencies, highly tunable emission colors, and low temperature solution processing. While substantial progress has been made in developing monochromatic LEDs with electroluminescence across blue, green, red, and near‐infrared regions, achieving highly efficient and stable white electroluminescence from a single

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