The enhancement of 21.2%-power conversion efficiency in polymer photovoltaic cells by using mixed Au nanoparticles with a wide absorption spectrum of 400 nm–1000 nm<xref ref-type="fn" rid="cpb142275fn1">*</xref>

The enhancement of 21.2%-power conversion efficiency in polymer photovoltaic cells by using mixed Au nanoparticles with a wide absorption spectrum of 400 nm–1000 nm*

Hao Jing-Yu^a)†, Xu Ying^a)†, Zhang Yu-Pei^a), Chen Shu-Fen^a)‡, Li Xing-Ao^a), Wang Lian-Hui^a), Huang Wei^a),^b)

J – V curves (a) and IPCE (b) of P3HT:PC₆₁BM devices with different Au NPs doping concentrations. Inset shows the dark current characteristics for all devices.