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Article
Chemistry, Multidisciplinary
Yachao Du et al.
Summary: The incorporation of a low concentration of a novel ionic liquid successfully improves the defects, energy alignment at the interface, and stability of CsPbI3 perovskite solar cells fabricated via ambient blade-coating. The cells achieve high power conversion efficiency and impressive long-term ambient stability.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Shaomin Yang et al.
Summary: In this study, a low-dimensional intermediate-assisted growth (LDIAG) method was developed to deposit high-quality and stable CsPbI2Br film in ambient atmosphere by introducing imidazole halide (IMX) to control nucleation and growth kinetics. The solar cell efficiency was improved to 17.26% using this method, showcasing potential for high-performance inorganic perovskite solar cells formed under ambient conditions.
ADVANCED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jie Xu et al.
Summary: This study systematically investigates the passivation mechanism of imidazolium-based ionic liquids (IILs) on inorganic perovskites. It is found that IILs can effectively heal or reduce defects in perovskite, improve stability, and enhance conversion efficiency.
NANO-MICRO LETTERS
(2022)
Review
Chemistry, Multidisciplinary
Yuetian Chen et al.
Summary: All-inorganic perovskites are promising materials for perovskite solar cells and optoelectronic devices. Recent studies have shown that using an organic matrix with organic ions, polymers, and solvent molecules can promote the crystallization of black phase inorganic perovskites at low temperatures, leading to improved stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Dongfang Xu et al.
Summary: This study demonstrates the use of functionalized Ti3C2Fx quantum dots as interface passivators to enhance the performance of CsPbI3 perovskite solar cells. The experimental results show that Ti3C2Fx quantum dots can tune energy levels, reduce defects, and form a barrier layer, leading to improved photovoltaic performance and stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Lu Yang et al.
Summary: A novel compound HADI was designed to improve the efficiency and stability of flexible perovskite solar cells, showing significant roles in surface modification, passivation, and charge transfer. PSCs based on HADI-SnO2 electron transport layer exhibited outstanding performance.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Guanghui Yu et al.
Summary: Vacuum-assisted thermal annealing (VATA) is demonstrated as an effective approach for controlling the morphology and crystallinity of the CsPbI3 perovskite films, leading to improved efficiency and stability of solar cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Shan Tan et al.
Summary: The study demonstrates that phenyltrimethylammonium iodide (PTAI) and its corresponding low-dimensional perovskites exhibit excellent thermal stability and effectively suppress non-radiative recombination of CsPbI3, resulting in improved efficiency and stability of PSCs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Yiting Jiang et al.
Summary: A series of fullerene dyads were designed and used as electron transport materials in inverted perovskite solar cells. Among them, FP-C8 showed the best performance in terms of energy disorder and morphological stability. Devices using FP-C8 as the electron transport material achieved higher power conversion efficiency compared to those using traditional PCBM. Moreover, FP-C8-based devices exhibited better moisture and thermal stability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Zhiyuan Xu et al.
Summary: CsPbI3-based 2D Ruddlesden-Popper perovskites with thiophene-based aromatic spacers exhibit improved phase stability and achieve a record efficiency of 16.00%. These devices maintain high efficiency even after long-term storage and exposure to high temperatures.
Article
Chemistry, Multidisciplinary
Huanhuan Yao et al.
Summary: In this study, a novel approach to improve charge transport and device performance in two-dimensional RP CsPbI3 perovskite solar cells (PSC) was proposed by developing a multiple-ring aromatic spacer. The use of 1-naphthylamine (1-NA) spacer with extended pi-conjugation lengths was found to reduce the exciton binding energy and facilitate efficient separation of excitons. The cations of the spacer also made a significant contribution to the conduction band, leading to a reduced bandgap and improved interlayer charge transport. The strong pi-pi conjugation of the spacer enhanced intermolecular interactions and hydrogen bonding, resulting in high-quality films with preferred vertical orientation and lower defect density. The (1-NA)(2)(Cs)(3)Pb4I3 PSC achieved a record 16.62% performance with enhanced stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Alexander Weiss et al.
Summary: In this study, we developed two new atomic layer deposition (ALD) processes for depositing cesium iodide (CsI) and cesium lead iodide perovskite (CsPbI3) thin films. The CsI process utilized specific precursors to yield high-purity and uniform thin films over a wide temperature range. CsI films were also converted into CsPbI3 perovskite films by first depositing a PbI2 layer and subsequently transforming it. The results of this study suggest that the ALD-based approach offers a viable alternative for depositing perovskite thin films in applications that involve complex high aspect ratio structures or large substrate areas.
CHEMISTRY OF MATERIALS
(2022)
Article
Multidisciplinary Sciences
Yang Zhao et al.
Summary: In halide perovskite solar cells, introducing RbCl doping effectively stabilizes the perovskite phase by converting excess PbI2 into an inactive compound. This strategy achieved a certified PCE of 25.6% for FAPbI(3) perovskite solar cells, with high device stability and minimal hysteresis effects.
Article
Chemistry, Physical
Linrui Duan et al.
Summary: This study developed a FAAc-assisted strategy to prepare high-quality γ-CsPbI3 perovskite film and achieved high power conversion efficiency and good stability for the γ-CsPbI3 solar cells.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Zhanglin Guo et al.
Summary: In comparison to hybrid perovskite solar cells, all-inorganic CsPbX3 solar cells have lower efficiency due to surface defects causing nonradiative recombination. In this study, 2,5-thiophenedicarboxylic acid (TDCA) is used to passivate the surface defects and improve the interfacial energy alignment, resulting in significantly improved V-OC and efficiency of CsPbX3 solar cells.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yuqi Cui et al.
Summary: The use of DMAAc as a solvent and regulator enables efficient fabrication of CsPbI3 photovoltaic devices. This approach stabilizes the CsPbI3 structure, eliminates intermediate phases, and produces high-quality films. The resulting solar cells exhibit high power conversion efficiency and open-circuit voltage, setting a new record.
ADVANCED MATERIALS
(2022)
Article
Engineering, Environmental
Yali Liu et al.
Summary: Passivating ionic defects on the surface of inorganic perovskite films using DADA significantly reduces defect density and extends the lifetime of charge carriers within the film. Additionally, DADA treatment induces an upward shift of the energy band edge of the perovskite layer, potentially facilitating hole extraction at the interface.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yang Liu et al.
Summary: Inorganic CsPbI3 perovskite has great potential in photovoltaics due to its stability. However, high-temperature annealing for CsPbI3 formation is not compatible with thermally vulnerable substrates. This study presents a low-temperature strategy to remove a byproduct and optimize the material properties.
ACS ENERGY LETTERS
(2022)
Review
Chemistry, Multidisciplinary
Zhanglin Guo et al.
Summary: Perovskite solar cells have achieved significant progress in recent years, particularly in terms of their high open-circuit voltage. Improving the open-circuit voltage is critical for enhancing device efficiency. This review paper provides an overview of the recent developments in the open-circuit voltage of perovskite solar cells, discussing strategies to reduce undesirable recombination in the perovskite film and at the interfaces.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Shan Tan et al.
Summary: The study revealed that phenyltrimethylammonium iodide (PTAI) and its corresponding LD perovskites demonstrate excellent thermal stability. Further investigation showed that PTAI-based LD perovskites are mainly distributed at grain boundaries, enhancing the phase stability of CsPbI3 and suppressing non-radiative recombination. As a result, the champion PSC device based on CsPbI3 achieved a record efficiency of 21.0% with high stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Xiaojing Gu et al.
Summary: Iodine vacancies and undercoordinated Pb2+ are the main causes of nonradiative charge recombination in all-inorganic perovskite films, while passivation with histamine (HA) significantly reduces surface trap density and prolongs charge lifetime, leading to an increased solar cell efficiency.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Xiuhong Sun et al.
Summary: The inorganic CsPbI3 perovskite can be fabricated at a lower temperature using an additive-involved leaching method, resulting in high crystallinity films with superior stability. The prepared films exhibit a power conversion efficiency of over 16% and maintain over 93% of the initial efficiency after aging for 30 days.
ADVANCED ENERGY MATERIALS
(2021)
Review
Chemistry, Physical
Hailiang Wang et al.
Summary: Organic-inorganic hybrid perovskite solar cells have achieved efficiencies over 25%, but their practical applications are limited by material instability. Replacing hybrid perovskites with inorganic CsPbX3 perovskites shows promise, with organic molecular engineering playing a vital role. The progress and potential future directions of organic molecular engineering in inorganic CsPbX3 PSCs are reviewed systematically to achieve high efficiency and stability.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
So Me Yoon et al.
Summary: Cesium lead triiodide (CsPbI3) has a desirable band gap and high thermal stability, but its power conversion efficiency (PCE) is lower than that of organic cation-based halide perovskites with identical band gaps. The PCE of CsPbI3 solar cells is mainly governed by the surface morphology and defect passivation of its thin films.
Letter
Chemistry, Physical
Rongmei Zhao et al.
Summary: Minimizing interfacial defects and improving charge transferability by employing a highly crystalline small molecule, C8-BTBT, can enhance the efficiency and stability of perovskite solar cells. This strategy reduces aggregates and improves charge carrier management, leading to over a 2% absolute efficiency improvement in devices. The thermal tolerance of C8-BTBT-modified Spiro-OMeTAD opens up possibilities for enhancing the performance of perovskite optoelectronics.
ACS ENERGY LETTERS
(2021)
Article
Chemistry, Physical
Guozhen Liu et al.
Summary: The study successfully tackled the impact of Pb-based defects on the efficiency and stability of perovskite solar cells by designing a low-dimensional perovskite (LDP) using an amphoteric heterocyclic cation. This approach led to increased efficiency and overall stability of the devices, opening up new possibilities for practical application in the field of perovskite photovoltaic devices through directional management of Pb-based interface defects.
ACS ENERGY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Xingtao Wang et al.
Summary: This study demonstrates defect compensation in CsPbI3 perovskite through crystal secondary growth induced by a solid-state reaction, resulting in highly efficient inorganic photovoltaics. The secondary growth process involving a bromine salt can heal defects, improve charge dynamics, enhance phase stability, and deliver a solar cell efficiency of 20.04% with excellent operational stability.
ADVANCED MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Wanchun Xiang et al.
Summary: Metal halide inorganic perovskite materials are of interest for photovoltaic applications due to their superior thermal stability. Solar cells based on inorganic perovskites have achieved a PCE over 20%, with more room for improvement compared to organic-inorganic hybrid perovskite solar cells. Interfaces play a crucial role in limiting the photovoltage and charge extraction efficiency in inorganic perovskite solar cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Sheng Fu et al.
Summary: Humidity-assisted chlorination with solid protection via Si-Cl incorporation is effective for reducing moisture erosion during deposition of CsPbI3 perovskite solar cells in air. The solid protection from Si-OH helps improve the crystallization and phase stability of CsPbI3, resulting in high efficiency and moisture tolerance.
ACS ENERGY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Anurag Krishna et al.
Summary: A molecular-level interface engineering strategy using a multifunctional ligand 2,5-thiophenedicarboxylic acid is presented to enhance the long-term operational and thermal stability of perovskite solar cells (PSCs). The solar cells achieved high operational stability and stabilized power conversion efficiency over 23% after prolonged testing, with insights into the modulation of grain boundaries, local density of states, surface bandgap, and interfacial recombination. Chemical analysis revealed that molecular passivation suppresses interfacial ion diffusion and inhibits irreversible degradation of perovskite, suggesting potential for expedited development of stable PSCs.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Yu Han et al.
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
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Yong Wang et al.
ADVANCED MATERIALS
(2020)
Article
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Chenyang Duan et al.
ADVANCED ENERGY MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Qiufeng Ye et al.
Article
Optics
Qi Jiang et al.
Article
Chemistry, Physical
Pascal Becker et al.
ADVANCED ENERGY MATERIALS
(2019)
Article
Multidisciplinary Sciences
Julian A. Steele et al.
Article
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Yong Wang et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Chemistry, Physical
Kang Chen et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Review
Chemistry, Physical
Anita Ho-Baillie et al.
Article
Chemistry, Multidisciplinary
Dae-Yong Son et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
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Rebecca J. Sutton et al.
ACS ENERGY LETTERS
(2018)
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Guannan Yin et al.
ADVANCED FUNCTIONAL MATERIALS
(2018)
Article
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Xiaodong Li et al.
NATURE COMMUNICATIONS
(2018)
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Yuze Lin et al.
ADVANCED MATERIALS
(2017)
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Philip Calado et al.
NATURE COMMUNICATIONS
(2016)
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Jon M. Azpiroz et al.
ENERGY & ENVIRONMENTAL SCIENCE
(2015)
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Christopher Eames et al.
NATURE COMMUNICATIONS
(2015)
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Giles E. Eperon et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2015)
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Nakita K. Noel et al.
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Huanping Zhou et al.