Surface Passivation of Perovskite Solar Cells Toward Improved Efficiency and Stability

论文摘要

The advancement of perovskite solar cells（PVSCs）technology toward commercialized promotion needs high efficiency and optimum stability.By introducing a small molecular material such as tetratetracontane(TTC,CH3（CH2）42CH3)at the fullerene(C60)/perovskite interface of planar p-i-n PVSCs,we significantly reduced the interfacial traps,thereby suppressing electron recombination and facilitating electron extraction.Consequently,an improved efficiency of 20.05% was achieved with a high fill factor of 79.4%,which is one of the best performances for small molecular-modified PVSCs.Moreover,the hydrophobic TTC successfully protects the perovskite film from water damage.As a result,we realized a better long-term stability that maintains 87% of the initial efficiency after continuous exposure for 200 h in air.

论文目录

文章来源

类型: 期刊论文

作者: Zhiqi Li,Jiajun Dong,Chunyu Liu,Jiaxin Guo,Liang Shen,Wenbin Guo

来源: Nano-Micro Letters 2019年03期

年度: 2019

分类: 工程科技Ⅰ辑,工程科技Ⅱ辑

专业: 电力工业

单位: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University,State Key Laboratory of Superhard Materials, Jilin University

分类号: TM914.4

页码: 240-248

总页数: 9

文件大小: 1601K

下载量: 29

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