Journal ArticleDOI
High‐Performance Perovskite Solar Cells with Enhanced Environmental Stability Based on Amphiphile‐Modified CH3NH3PbI3
Dongqin Bi,Peng Gao,Rosario Scopelliti,Emad Oveisi,Jingshan Luo,Michael Grätzel,Anders Hagfeldt,Mohammad Khaja Nazeeruddin +7 more
TLDR
A new aliphatic fluorinated amphiphilic additive is added to CH3 NH3 PbI3 perovskite to tune the morphology and enhance the environmental stability without sacrificing the performance of the devices.Abstract:
A new aliphatic fluorinated amphiphilic additive is added to CH3 NH3 PbI3 perovskite to tune the morphology and enhance the environmental stability without sacrificing the performance of the devices. Judicious screening of the perovskite precursor solution realizes a power conversion efficiency of 18.0% for mesoporous perovskite solar cells as a result of improved surface coverage. A slower degradation in ambient air is observed with this modified perovskite.read more
Citations
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Journal ArticleDOI
Defect passivation in hybrid perovskite solar cells using quaternary ammonium halide anions and cations
Xiaopeng Zheng,Bo Chen,Jun Dai,Yanjun Fang,Yang Bai,Yuze Lin,Haotong Wei,Xiao Cheng Zeng,Jinsong Huang,Jinsong Huang +9 more
TL;DR: Zheng et al. as discussed by the authors showed that quaternary ammonium halides can effectively passivate ionic defects in several different types of hybrid perovskite with their negative-and positive-charged components.
Journal ArticleDOI
Scaling behavior of moisture-induced grain degradation in polycrystalline hybrid perovskite thin films
TL;DR: In this paper, a scaling behavior of moisture-induced grain degradation in polycrystalline CH3NH3PbI3 films was reported, which can be explained by the degradation along the inplane direction, which is initiated at the grain boundary.
Journal ArticleDOI
Stable High-Performance Perovskite Solar Cells via Grain Boundary Passivation.
Tianqi Niu,Jing Lu,Rahim Munir,Jianbo Li,Dounya Barrit,Xu Zhang,Hanlin Hu,Zhou Yang,Aram Amassian,Kui Zhao,Shengzhong Frank Liu,Shengzhong Frank Liu +11 more
TL;DR: A model of the passivation mechanism is proposed to understand how the molecules simultaneously passivate the Pb-I antisite defects and vacancies created by under-coordinated Pb atoms, and how the energy offset between the semiconducting molecules and the perovskite influences trap states and intergrain carrier transport.
Journal ArticleDOI
Lead-Free Inverted Planar Formamidinium Tin Triiodide Perovskite Solar Cells Achieving Power Conversion Efficiencies up to 6.22.
Wei-Qiang Liao,Wei-Qiang Liao,Dewei Zhao,Yue Yu,Corey R. Grice,Changlei Wang,Alexander J. Cimaroli,Philip Schulz,Weiwei Meng,Kai Zhu,Ren-Gen Xiong,Yanfa Yan +11 more
TL;DR: Efficient lead (Pb)-free inverted planar formamidinium tin triiodide (FASnI3 ) perovskite solar cells (PVSCs) are demonstrated and exhibit small photocurrent-voltage hysteresis and high reproducibility.
Journal ArticleDOI
Stable high efficiency two-dimensional perovskite solar cells via cesium doping
Xu Zhang,Xu Zhang,Xu Zhang,Xiaodong Ren,Bin Liu,Rahim Munir,Xuejie Zhu,Dong Yang,Jianbo Li,Yucheng Liu,Detlef-M. Smilgies,Ruipeng Li,Zhou Yang,Tianqi Niu,Xiuli Wang,Aram Amassian,Kui Zhao,Shengzhong Liu,Shengzhong Liu +18 more
TL;DR: In this paper, the authors demonstrate cesium cation (Cs+) doped 2D (BA)2(MA)3Pb4I13 perovskite solar cells giving a power conversion efficiency (PCE) as high as 13.7%.
References
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Journal ArticleDOI
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Julian Burschka,Norman Pellet,Norman Pellet,Soo-Jin Moon,Robin Humphry-Baker,Peng Gao,Mohammad Khaja Nazeeruddin,Michael Grätzel +7 more
TL;DR: A sequential deposition method for the formation of the perovskite pigment within the porous metal oxide film that greatly increases the reproducibility of their performance and allows the fabrication of solid-state mesoscopic solar cells with unprecedented power conversion efficiencies and high stability.
Journal ArticleDOI
Efficient planar heterojunction perovskite solar cells by vapour deposition
TL;DR: It is shown that perovskite absorbers can function at the highest efficiencies in simplified device architectures, without the need for complex nanostructures.
Journal ArticleDOI
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
TL;DR: A bilayer architecture comprising the key features of mesoscopic and planar structures obtained by a fully solution-based process is reported, providing important progress towards the understanding of the role of solution-processing in the realization of low-cost and highly efficient perovskite solar cells.
Journal ArticleDOI
High-performance photovoltaic perovskite layers fabricated through intramolecular exchange
Woon Seok Yang,Jun Hong Noh,Nam Joong Jeon,Young Chan Kim,Seungchan Ryu,Jangwon Seo,Sang Il Seok +6 more
TL;DR: An approach for depositing high-quality FAPbI3 films, involving FAP bI3 crystallization by the direct intramolecular exchange of dimethylsulfoxide (DMSO) molecules intercalated in PbI2 with formamidinium iodide is reported.
Journal ArticleDOI
Compositional engineering of perovskite materials for high-performance solar cells
Nam Joong Jeon,Jun Hong Noh,Woon Seok Yang,Young Chan Kim,Seungchan Ryu,Jangwon Seo,Sang Il Seok +6 more
TL;DR: This work combines the promising—but relatively unstable formamidinium lead iodide with FAPbI3 with methylammonium lead bromide as the light-harvesting unit in a bilayer solar-cell architecture and improves the power conversion efficiency of the solar cell to more than 18 per cent under a standard illumination.