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) EQE spectra of the PSCs without and with dual NPs. (b) PL spectra of the PSCs without and with dual NPs recorded using excitation source wavelengths 380 nm. (c) UV–vis absorption spectra of ITO/PEDOT:PSS without and with dual NPs/CH NH PbI films. (d) UV–vis absorption spectra of PEDOT:PSS without and with dual NPs films.