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

Dong Yang; Ruixia Yang; Xiaodong Ren; Xuejie Zhu; Zhou Yang; Can Li; Shengzhong Frank Liu

doi:10.1002/adma.201600446

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

Adv Mater. 2016 Jul;28(26):5206-13. doi: 10.1002/adma.201600446. Epub 2016 May 4.

Authors

Dong Yang¹, Ruixia Yang², Xiaodong Ren¹, Xuejie Zhu¹, Zhou Yang¹, Can Li², Shengzhong Frank Liu^{1

2}

Affiliations

¹ Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China.
² Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.

PMID: 27147394
DOI: 10.1002/adma.201600446

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.

Keywords: electron mobility; electron-transport; flexible; ionic liquids; trap-state.