Journal ArticleDOI
Highly Efficient and Stable Perovskite Solar Cells Based on Monolithically Grained CH3NH3PbI3 Film
TLDR
In this paper, thiourea is introduced into the CH3NH3PbI3 precursor with two-step sequential EA interfacial processing for the first time to grow compact microsized and monolithically grained perovskite films.Abstract:
The synthesis and growth of perovskite films with controlled crystallinity and microstructure for highly efficient and stable solar cells is a critical issue. In this work, thiourea is introduced into the CH3NH3PbI3 precursor with two-step sequential ethyl acetate (EA) interfacial processing. This is shown for the first time to grow compact microsized and monolithically grained perovskite films. X-ray diffraction patterns and infrared spectroscopy are used to prove that thiourea significantly impacts the perovskite crystallinity and morphology by forming the intermediate phase MAI·PbI2·SC(NH2)2. Afterward, the residual thiourea which coursed charge recombination is completely extracted by the sequential EA processing. The product has improved light harvesting, suppressed defect state, and enhanced charge separation and transport. The sequentially EA processed perovskite solar cells offer an impressive 18.46% power conversion efficiency and excellent stability in ambient air. More importantly, the EA postprocessed perovskite solar cells also have excellent voltage response under ultraweak light (0.05% sun) with promising utility in photodetectors and photoelectric sensors.read more
Citations
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Journal ArticleDOI
Additive Engineering for Efficient and Stable Perovskite Solar Cells
Fei Zhang,Kai Zhu +1 more
Journal ArticleDOI
Stabilizing the Efficiency Beyond 20% with a Mixed Cation Perovskite Solar Cell Fabricated in Ambient Air under Controlled Humidity
Trilok Singh,Tsutomu Miyasaka +1 more
TL;DR: In this article, a method to reproduce stable and high power conversion efficiency (PCE) of a triple cation perovskite prepared using a one-step solution deposition and low-temperature annealing fully conducted in controlled ambient humidity conditions was explored.
Journal ArticleDOI
A novel quadruple-cation absorber for universal hysteresis elimination for high efficiency and stable perovskite solar cells
Tongle Bu,Xueping Liu,Yuan Zhou,Jian-Peng Yi,Xin Huang,Long Luo,Junyan Xiao,Zhiliang Ku,Yong Peng,Fuzhi Huang,Yi-Bing Cheng,Yi-Bing Cheng,Jie Zhong +12 more
TL;DR: In this paper, a quadruple-cation perovskite absorber, KxCs0.05(FA0.85MA0.15)0.95Pb(I 0.85Br 0.15), was proposed to eliminate the hysteresis in PSCs.
Journal ArticleDOI
Synthetic Approaches for Halide Perovskite Thin Films.
TL;DR: This comprehensive review explores how the unique chemistry of halide perovskites can be exploited to tailor film growth processes and highlights the connections between processing methods and the resulting film characteristics.
Journal ArticleDOI
Bilateral alkylamine for suppressing charge recombination and improving stability in blade-coated perovskite solar cells.
Wu-Qiang Wu,Zhibin Yang,Peter N. Rudd,Yuchuan Shao,Xuezeng Dai,Haotong Wei,Jingjing Zhao,Yanjun Fang,Qi Wang,Ye Liu,Yehao Deng,Xun Xiao,Yuanxiang Feng,Jinsong Huang +13 more
TL;DR: Blade-coated PSCs incorporating bilateral alkylamine (BAA) additives achieve PCEs of 21.5 and 22.0%, and BAA improves the device shelf lifetime to >1000 hours and operation stability to >500 hours under light, with 90% of the initial efficiency retained.
References
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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
The emergence of perovskite solar cells
TL;DR: In this article, a review describes the rapid progress that has been made in hybrid organic-inorganic perovskite solar cells and their applications in the photovoltaic sector.
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.
Journal ArticleDOI
Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency
Michael Saliba,Taisuke Matsui,Ji-Youn Seo,Konrad Domanski,Juan-Pablo Correa-Baena,Mohammad Khaja Nazeeruddin,Shaik M. Zakeeruddin,Wolfgang Tress,Antonio Abate,Anders Hagfeldt,Michael Grätzel +10 more
TL;DR: In this paper, the triple cation perovskite photovoltaics with inorganic cesium were shown to be thermally more stable, contain less phase impurities and are less sensitive to processing conditions.