Improving power conversion efficiency of perovskite solar cells by cooperative LSPR of gold-silver dual nanoparticles

Liu Peng¹, Yang Bing-chu^{1, †}, Liu Gang¹, Wu Run-Sheng^{1, 3}, Zhang Chu-jun¹, Wan Fang¹, Li Shui-gen^{1, 3}, Yang Jun-liang¹, Gao Yong-li^{1, 2}, Zhou Cong-hua^{1, ^‡}

(color online) AFM images of PEDOT:PSS (a) without and (b) with dual NPs. SEM images of perovskite thin films deposited on the PEDOT:PSS (c) without and (d) with dual NPs.