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) (a) TEM image of dual NPs. (b) Absorption spectrum of dual NPs dispersed in deionized water. (c) Raman signal of 10 mol/L rhodamine on ITO glass without and with dual NPs. (d) Raman signal of 10 mol/L rhodamine on bare ITO glass.