Hysteresis-Suppressed High-Efficiency Flexible Perovskite Solar Cells Using Solid-State Ionic-Liquids for Effective Electron Transport.

Yang, Dong; Yang, Ruixia; Ren, Xiaodong; Zhu, Xuejie; Yang, Zhou; Li, Can; Liu, Shengzhong Frank · Adv Mater · 2016

basic_science · Level V

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Abstract

An efficiency of flexible perovskite solar cells (Pvs-SCs) of 16.09% is achieved, the highest value reported for flexible Pvs-SCs to date. The outstanding performance is attributed to the superior features of alternative electron-transport materials, such as antireflection, a suitable work function, high electron mobility, and a reduced trap-state density of the perovskite material.