Additive Engineering by Bifunctional Guanidine Sulfamate for Highly Efficient and Stable Perovskites Solar Cells
Journal
SMALL
Date Issued
2020
Author(s)
Liu, Xuping
Wu, Jihuai
Yang, Yuqian
Wang, Deng
Li, Guodong
Wang, Xiaobing
Sun, Weihai
Wei, Yuelin
Huang, Yunfang
Huang, Miaoliang
Fan, Leqing
Lan, Zhang
Lin, Jianming
Ho, Kuo-Chuan
Abstract
. The synergistic effect of the anions and cations effectively reduces the trap density and the recombination in PVK, so that it can improve the efficiency and stability of PSCs. At an optimal concentration of GuaSM (2 mol%), the PSC presents a champion power conversion efficiency of 21.66% and a remarkably improved stability and hysteresis. The results provide a novel strategy for highly efficient and stable PSCs by bifunctional additive.
SDGs
Type
journal article