High-Performance Polymer Tandem Solar Cells Employing a New n-Type Conjugated Polymer as an Interconnecting Layer.

Zhang, Kai; Gao, Ke; Xia, Ruoxi; Wu, Zhihong; Sun, Chen; Cao, Jiamin; Qian, Liu; Li, Weiqi et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

A new n-type polymer, PF3N-2TNDI, with high electron mobility, is developed as efficient cathode interfacial material and interconnecting layer (ICL) for constructing high-performance tandem organic solar cells. Tandem cells employing the ICL with structure of PF3N-2TNDI/Ag/ PSS achieve a high power conversion efficiency (PCE) of 11.35%. Moreover, flexible tandem cells with PCE over 10% are also demonstrated.