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Preparation of high‐efficiency perovskite solar cells via doping Ag into CuO nanofibers as hole buffer layer
Author(s) -
Zhuang Zhishan,
Qiu Linlin,
Dong Lika,
Chen Yue,
Chu Zhudan,
Ma Xiangyu,
Du Pingfan,
Xiong Jie
Publication year - 2020
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.25527
Subject(s) - pedot:pss , materials science , nanofiber , perovskite (structure) , doping , layer (electronics) , calcination , energy conversion efficiency , electrospinning , chemical engineering , perovskite solar cell , nanotechnology , optoelectronics , composite material , polymer , catalysis , organic chemistry , chemistry , engineering
Ag/CuO nanofibers (Nfs) with a diameter of 650 nm were successfully prepared via electrospinning Ag doped CuO nanofibers and then calcined at 450°C for 2 hours. By using Ag/CuO Nfs and PEDOT:PSS as the hole transport layer, an optimum perovskite solar cell power conversion efficiency (PCE) of 11.6% was achieved, which was 33% higher than that of the original perovskite solar cells (8.7%). The devices showed a high PCE because of the high cavity mobility of the Ag/CuO Nfs/PEDOT:PSS films. At the same time, the Ag/CuO Nfs could also slow down the hydrolysis and corrosion of the perovskite by acidic PEDOT:PSS, and increase the environmental stability of the solar cells.