Journal ArticleDOI
Understanding steric-charge-dependence of conjugated passivators on π-Pb2+ bond strength for efficient all-inorganic perovskite solar cells
Rafael Tursi,David Domínguez +1 more
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In this article , the steric-charge dependence of various π-conjugated pyridine derivatives on electron-donating ability to passivate inorganic CsPbIBr2 perovskite film was investigated.About:
This article is published in Chemical Engineering Journal.The article was published on 2022-03-01. It has received 15 citations till now. The article focuses on the topics: Steric effects & Perovskite (structure).read more
Citations
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Recent Progress of Carbon‐Based Inorganic Perovskite Solar Cells: From Efficiency to Stability
TL;DR: In this article , a series of strategies have been proposed to improve device performance, including the fabrication technique optimization, solvent engineering, composition engineering, interface engineering, charge transport layer optimization, and so on, and the power conversion efficiency of C-IPSCs are rapidly increased from initial 5% to exceeding 15%.
Journal ArticleDOI
Intermediate Phase‐Assisted Sequential Deposition Toward 15.24%‐Efficiency Carbon‐Electrode Cspbi2br Perovskite Solar Cells
Weidong Zhu,Junxiao Ma,Wenming Chai,Tianjiao Han,Dan Chen,Xiaohui Xie,Gang Liu,Peng Dong,He Xi,Dazheng Chen,Jincheng Zhang,Chunfu Zhang,Yue Hao +12 more
TL;DR: In this paper , an intermediate phase-assisted sequential deposition for desired CsPbI2Br films is proposed, which is carried out by sequentially spin-coating PbBr2 and CsI precursors onto the substrate in ambient air, during which a Ruddlesden-Popper (R-P) perovskite intermediate phase film composed of a Cs•Pb•I•Br complex is produced.
Journal ArticleDOI
Multifunctional Polymer Capping Frameworks Enable High-Efficiency and Stable All-Inorganic Perovskite Solar Cells
Fangxuan Yi,Qiyao Guo,Dengduan Zheng,Rongshan Zhuang,Junshuai Zhang,Qunwei Tang,Jialong Duan +6 more
TL;DR: In this paper , polymeric poly(vinylpyrrolidone) with enormous functional carbonoxygen groups is introduced into the CsPbIBr2 precursor as a multifunctional polymer capping framework to effectively improve the film quality and heal the lattice defects (uncoordinated Pb2+).
Journal ArticleDOI
Charge-selective-contact-dependent halide phase segregation in CsPbIBr2 perovskite solar cells and its correlation to device degradation
TL;DR: In this article , the halide phase segregation of CsPbIBr 2 films on TiO 2 ETL and NiO x HTL was investigated, and it was shown that such a phenomenon is reversible and can be fully recovered.
Journal ArticleDOI
Accelerating Photogenerated Hole Tunneling through Passivation Layers via Reducing Interplanar Spacing for Efficient and Stable Perovskite Solar Cells.
Mingzhu Pei,Qingshun Dong,Minhuan Wang,Yudi Wang,Hongru Ma,Jing Liu,Ruiting Wang,Jiming Bian,Yan Shi +8 more
TL;DR: In this article , the authors investigated the promoting effect of the reduced interplanar spacing of the passivation layer on the photogenerated hole tunneling efficiency at the interface of the hole transport layer and perovskite.
References
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Journal ArticleDOI
Surface passivation of perovskite film for efficient solar cells
Qi Jiang,Yang Zhao,Xingwang Zhang,Xiaolei Yang,Yong Chen,Zema Chu,Qiufeng Ye,Li Xingxing,Zhigang Yin,Jingbi You +9 more
TL;DR: In this paper, an organic halide salt phenethylammonium iodide (PEAI) was used on HC(NH2)2-CH3NH3 mixed perovskite films for surface defect passivation.
Journal ArticleDOI
Pseudo-halide anion engineering for α-FAPbI3 perovskite solar cells.
Jaeki Jeong,Jaeki Jeong,Minjin Kim,Jongdeuk Seo,Haizhou Lu,Paramvir Ahlawat,Aditya Mishra,Yingguo Yang,Michael A. Hope,Felix Eickemeyer,Maengsuk Kim,Yung Jin Yoon,In Woo Choi,Barbara Primera Darwich,Seung Ju Choi,Yimhyun Jo,Jun Hee Lee,Bright Walker,Shaik M. Zakeeruddin,Lyndon Emsley,Ursula Rothlisberger,Anders Hagfeldt,Anders Hagfeldt,Dong Suk Kim,Michael Grätzel,Jin Young Kim +25 more
TL;DR: In this paper, the pseudo-halide anion formate (HCOO−) was used to suppress anion-vacancy defects that are present at grain boundaries and at the surface of the perovskite films.
Journal ArticleDOI
Constructive molecular configurations for surface-defect passivation of perovskite photovoltaics
Rui Wang,Jingjing Xue,Kai-Li Wang,Zhao-Kui Wang,Zhao-Kui Wang,Yanqi Luo,David P. Fenning,Guangwei Xu,Selbi Nuryyeva,Tianyi Huang,Yepin Zhao,Jonathan Lee Yang,Jiahui Zhu,Minhuan Wang,Shaun Tan,Ilhan Yavuz,Kendall N. Houk,Yang Yang,Yang Yang +18 more
TL;DR: The chemical environment of a functional group that is activated for defect passivation was systematically investigated with theophylline, caffeine, and theobromine and hydrogen-bond formation between N-H and I (iodine) assisted the primary C=O binding with the antisite Pb defect to maximize surface-defect binding.
Journal ArticleDOI
Insight into the Ligand-Mediated Synthesis of Colloidal CsPbBr3 Perovskite Nanocrystals: The Role of Organic Acid, Base, and Cesium Precursors
TL;DR: These studies have shed light on the influence of ligand chemistry on crystal growth and stabilization of the nanocrystals, which opens the door to functionalizable perovskite nanocrsytals through surface ligand manipulation.
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