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Article
Chemistry, Multidisciplinary
Chen Chen et al.
Summary: Introducing polyacrylonitrile (PAN) for passivating uncoordinated lead cations in perovskite films has been successful in improving device efficiency and open-circuit voltage, increasing ion migration activation energy, and enhancing operational stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Tianqi Niu et al.
Summary: The chemical structure and concentration of spacers significantly affect the characteristics of 2D capping layers in 2D/3D perovskite heterostructures. Density functional theory calculations show that spacer modifications can alter energy-level alignments at 2D/3D interfaces, impacting charge-transfer characteristics. Strong interactions between EDBE cations and inorganic [PbI6](4-) slabs enable controlled deposition of high-quality QW structures with improved performance in 2D/3D PSCs.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Xuejie Zhu et al.
Summary: A new approach using an ionic liquid was designed to improve the stability and performance of metal-halide perovskite solar cells. Experimental results showed that this method effectively enhances the photovoltaic performance while exhibiting outstanding stability characteristics.
ADVANCED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Jiangzhao Chen et al.
Summary: The advancements of formamidinium-rich perovskite solar cells with efficiencies exceeding 23% are summarized in terms of composition engineering, solvent engineering, additive engineering, and interface engineering, proposing possible strategies and methods to further improve voltage and fill factor for ideal power conversion efficiency.
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
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
Engineering, Environmental
Xin Zuo et al.
Summary: A simple and effective buried interface passivation strategy based on cation engineering was developed for perovskite solar cells. The modifiers CDSC and DPAH can passivate defects on the surface of perovskite and SnO2 films, and reduce interfacial energy barrier by improving energy band alignment. CDSC demonstrated superior defect passivation and energy band modulation compared to DPAH.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Multidisciplinary Sciences
Zhen Li et al.
Summary: Functionalizing the interfaces of multication and halide perovskite solar cells with an organometallic compound, ferrocenyl-bis-thiophene-2-carboxylate (FcTc(2)), enhances their efficiency and stability. The resulting devices exhibit high performance and stability, as demonstrated by tests and continuous operation.
Article
Chemistry, Physical
Hang Su et al.
Summary: By designing specific molecular structures for passivators and optimizing the interactions between passivators and [PbI6](4-) octahedron, the efficiency and stability of perovskite solar cells have been significantly improved. By adjusting the molecular polarity of the passivator, a general passivation model has been established, enabling the solar cells to exhibit good reproducibility and long-term stability.
Article
Crystallography
Sheng Huang et al.
Summary: The study investigates the structural changes and hot carrier cooling process of CsPbI3 perovskite under pressure, revealing significant effects on its performance. The electrical conductivity expands with increasing pressure, providing important insights for its application in pressure sensors.
Article
Chemistry, Multidisciplinary
Qian Zhou et al.
Summary: In this study, a novel and effective steric-hindrance-dependent buried interface defect passivation and stress release strategy is reported, which utilizes adamantane derivative molecules to modify the SnO2/perovskite interface. The experimental and theoretical results confirm the steric-hindrance-dependent defect passivation effect and interfacial chemical interaction strength. The device performance is enhanced by mitigating interfacial strain and passivating interfacial defects. The ADAA-modified device achieves an impressive efficiency of 23.18%.
ADVANCED FUNCTIONAL 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
Multidisciplinary Sciences
Tiankai Zhang et al.
Summary: This study proposes a new doping strategy for perovskite solar cells, using stable organic radicals as dopants and ionic salts as doping modulators. The strategy improves the performance and stability of the devices and could inspire further optimization in other optoelectronic devices.
Article
Chemistry, Physical
Md Arafat Mahmud et al.
Summary: In high-bandgap perovskite solar cells, a double-sided interface passivation scheme based on cation diffusion has been developed to address the low fill factor issue. The champion cell achieved a record fill factor of 86.5% and a power conversion efficiency of 20.2%.
ADVANCED ENERGY MATERIALS
(2022)
Article
Multidisciplinary Sciences
Qi Jiang et al.
Summary: In this study, a reactive surface engineering approach was used to enhance the performance of perovskite solar cells with an inverted structure. The resulting p-i-n solar cells showed a high power conversion efficiency of over 25% and remained stable after long-term operation under extreme conditions.
Review
Chemistry, Physical
Ali Hassan et al.
Summary: Hybrid lead halide perovskite photovoltaics have surpassed thin-film solar cells in terms of efficiency within a decade. However, defects related to undercoordinated ions, band offsets, grain boundaries, photocurrent hysteresis, and environmental instability have hindered the industrialization of perovskite photovoltaics. This comprehensive review provides insights into the nature, source, correlation, and effects of these defects, as well as strategies for defect passivation. Suggestions for next-generation perovskite solar cells are also recommended.
Article
Chemistry, Physical
Kaicheng Zhang et al.
Summary: The introduction of a Lewis base and hydrazinium iodide effectively passivates the bulk and surface of Pb/Sn PSCs, resulting in a significant improvement in power conversion efficiency and stability.
ACS ENERGY LETTERS
(2022)
Review
Chemistry, Multidisciplinary
Lian Wang et al.
Summary: The lattice structure and composition of perovskites significantly affect their stability. [PbX6] (4-) octahedra and organic spacers play crucial roles in stabilizing the perovskite structure. Various strategies involving octahedral modulation and organic spacer construction have been developed to enhance the stability of perovskites. Key scientific issues and future directions are discussed to further improve the stability of perovskite solar cells.
ENERGY & ENVIRONMENTAL SCIENCE
(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
Feihong Ye et al.
Summary: This study systematically investigated the role of MACl in sequentially deposited Br-free FA-based perovskites, revealing that MACl can regulate the reaction, phase transition, and crystallization. Compared to traditional FAPbI(3), perovskites with MACl exhibit superior performance in terms of grain size, carrier lifetime, and trap density.
ADVANCED MATERIALS
(2021)
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
Energy & Fuels
Yeoun-Woo Jang et al.
Summary: Researchers have developed a solid-phase method to grow phase-pure two-dimensional perovskites in perovskite solar cells, enhancing device efficiency and stability. By growing a stable two-dimensional film on top of a three-dimensional film using a solvent-free method, an intact 2D/3D heterojunction is formed, resulting in high photovoltage in the device.
Article
Chemistry, Multidisciplinary
Zihan Fang et al.
Summary: Grain boundary management is crucial for the performance of polycrystalline perovskite solar cells, and a designed supramolecular binder can simultaneously passivate defects and promote carrier transport, leading to improved efficiency and stability. The NiP-doped PSCs achieved a certified efficiency of 22.1% and retained over 80% initial performance after continuous illumination or heating for 3000 hours at 85 degrees C.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Hanul Min et al.
Summary: By introducing an interlayer between the electron-transporting and perovskite layers in perovskite solar cells, researchers have successfully enhanced charge extraction and transport from the perovskite, leading to higher power conversion efficiency and fewer interfacial defects. The coherent interlayer allowed the fabrication of devices with a certified efficiency of 25.5%, which maintained about 90% of its initial efficiency even after continuous light exposure for 500 hours. The findings provide guidelines for designing defect-minimizing interfaces in metal halide perovskites and electron-transporting layers.
Article
Chemistry, Multidisciplinary
Tingting Liu et al.
Summary: The study demonstrates that aromatic spacers play a crucial role in 2D/3D hybrid perovskites, improving crystalline growth and orientation, reducing defect states, and enhancing spatially resolved carrier lifetime.
Article
Chemistry, Physical
Jie Xu et al.
Summary: Interfaces between the perovskite active layer and charge-transport layers are crucial for the efficiency and stability of halide-perovskite photovoltaics. By inserting ultrathin alkali-fluoride films between the perovskite layer and CTLs, a bilateral inorganic walls strategy was employed to address surface defects, leading to improved efficiency and stability in perovskite solar cells.
Article
Multidisciplinary Sciences
Matteo Degani et al.
Summary: This study presents a dual interfacial modification approach by incorporating large organic cations at both the bottom and top interfaces of the perovskite active layer, leading to simultaneous improvement in both open-circuit voltage and fill factor of the devices, reaching a champion device efficiency of 23.7%. This dual interfacial modification is fully compatible with bulk modification of the perovskite active layer by ionic liquids, resulting in efficient and stable inverted architecture devices.
Article
Chemistry, Multidisciplinary
Albertus A. Sutanto et al.
Summary: The study emphasizes the importance of interface engineering and design in optimizing multilayer device stacks, particularly in addressing interface issues in 2D/3D perovskite solar cells. It proposes methods to enhance device efficiency and stability by understanding the interface energetics and forming a p-n junction.
Article
Chemistry, Physical
Hang Su et al.
Summary: The study introduces fluoroethylamine (FEA) into perovskite films to passivate defects, finding that the distribution of fluorine atoms in the molecule affects the passivation effect and performance of the perovskite film. These FEA passivated perovskite films showed improved carrier-lifetime, suppressed nonradiative recombination, and enhanced hydrophobicity, with different fluorine distribution patterns leading to varied efficiency and stability outcomes.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
K. M. Muhammed Salim et al.
Summary: This study demonstrates that pure FAPI perovskite solar cells prepared in ambient air exhibit greater long-term stability compared to those fabricated under nitrogen. The addition of PbS quantum dots and methylammonium chloride can enhance the performance and stability of these devices even further.
ACS ENERGY LETTERS
(2021)
Article
Multidisciplinary Sciences
Qi Cao et al.
Summary: This study introduces a star-shaped polymer to enhance charge transport and inhibit ion migration in perovskite solar cells, leading to improved efficiency and stability. Modified devices demonstrate significant performance enhancements and excellent long-term operational stability.
Article
Chemistry, Physical
Furkan H. Isikgor et al.
Summary: The use of molecules containing both electron-rich and electron-poor moieties, such as phenformin hydrochloride (PhenHCl), can improve stability and efficiency of perovskite/silicon tandem solar cells by satisfying the requirements of defect passivation and suppression of light-induced phase segregation.
Article
Chemistry, Multidisciplinary
Yuzhuo Zhang et al.
Summary: A depth-dependent manipulation strategy is demonstrated to concurrently modulate the bulk and interfacial defects in perovskite films, resulting in improved efficiency of PSCs. This strategy provides new insights into spatial defect modulation and may open up promising ways for defect modulator design for highly efficient perovskite optoelectronic devices.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Yuan Cai et al.
Summary: Using the multifunctional molecule DFPDA as an additive, the stability issues of perovskite solar cells have been effectively addressed, resulting in high-quality films with an efficiency of 22.21% and significantly improved stability against moisture, heat, and light.
ADVANCED FUNCTIONAL MATERIALS
(2021)
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Hongwei Zhu et al.
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(2020)
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Xiaoming Chang et al.
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(2020)
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Minchao Qin et al.
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(2020)
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Shaun Tan et al.
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Fengzhu Li et al.
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(2020)
Article
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Tzu-Sen Su et al.
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(2020)
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Mingyu Jeong et al.
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Muhammad Sohail Abbas et al.
SUSTAINABLE ENERGY & FUELS
(2020)
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Qi Jiang et al.
Article
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Nengxu Li et al.
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Sai Bai et al.
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Sheng Huang et al.
ADVANCED MATERIALS
(2019)
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Shunquan Tan et al.
ADVANCED ENERGY MATERIALS
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Dong-Ho Kong et al.
ADVANCED MATERIALS
(2019)
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Tianqi Niu et al.
ADVANCED MATERIALS
(2018)
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Chenxin Ran et al.
CHEMICAL SOCIETY REVIEWS
(2018)
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Mojtaba Abdi-Jalebi et al.
ACS ENERGY LETTERS
(2018)
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Wei Li et al.
ACS ENERGY LETTERS
(2017)
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MATERIALS SCIENCE & ENGINEERING R-REPORTS
(2016)
