Functional polymer passivatingFA_(0.85)PEA_(0.15)SnI_(3) for efficient and stable lead-free perovskite solar cells
作者机构：Tsinghua-Berkeley Shenzhen Institute(TBSI)Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518000China Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518000China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2023年第16卷第1期
页 面：481-488页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学]
基 金：This work is financially supported by Shenzhen Science and Technology Innovation Committee(No.JCYJ20190809172615277) Guangdong Basic and Applied Basic Research Foundation(No.2020A1515111065) Shenzhen Municipal Development and Reform Commission,New Energy Technology Engineering Laboratory(No.SDRC172)
主 题：FA_(0.85)PEA_(0.15)SnI_(3) perovskites solar cells crystal growth modulation stability
摘 要：Due to their excellent advantages such as low toxicity,superior optoelectronic properties,low-temperature fabrication,and costeffectiveness,Sn-based perovskites have become the most promising alternatives for high performance lead-free perovskite solar ***,the character of Sn ^(2+)is easily oxidized toSn ^(4+),causing unnecessary p-type self-doping and high leakage *** seriously,trap-induced non-radiative recombination from rapid crystallization causes into large energy loss with a low open circuit ***,the Sn-based solar cells have efficiency far behind the Pb-based solar ***,the polymer poly(ethylene glycol)diacrylate(PEGDA)is used to control crystal growth and passivate the defects in FA_(0.85)PEA_(0.15)SnI_(3) thin *** Sn-perovskite layer shows compact crystal with large grain size and reduced *** perovskite thin film is further processed to fabricate the inverted solar cell with device structure of ITO(indium tin oxide)/PEDOT:PSS(Poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate))/FA_(0.85)PEA_(0.15)SnI_(3)/ICBA(indene-C60 bisadduct)/BCP(bathocuproine)/Ag,which shows the power conversion efficiency(PCE)of 11.45%with voltage of 0.82 ***,corresponding perovskite solar cells exhibit an enhanced stability due to PEGDA induced compressive strain in *** work could shed light on one of successful attempts to improve Sn-based solar cell efficiency for sustainable energy conversion.
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