Π‐Conjugated Lewis Base: Efficient Trap‐Passivation and Charge‐Extraction for Hybrid Perovskite Solar Cells. Issue 7 (6th December 2016)

• Record Type: Journal Article
• Authors: Lin, Yuze; Shen, Liang; Dai, Jun; Deng, Yehao; Wu, Yang; Bai, Yang; Zheng, Xiaopeng; Wang, Jiayu; Fang, Yanjun; Wei, Haotong; Ma, Wei; Zeng, Xiao Cheng; Zhan, Xiaowei; Huang, Jinsong
• Is Part Of: Advanced materials. Volume 29:Issue 7(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-12-06
• Subjects: π‐conjugated Lewis base -- charge extraction -- perovskite solar cells -- trap passivation; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201604545
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : A π‐conjugated Lewis base is introduced into perovskite solar cells, namely, indacenodithiophene end‐capped with 1.1‐dicyanomethylene‐3‐indanone (IDIC), as a multifunctional interlayer, which combines efficient trap‐passivation and electron‐extraction. Perovskite solar cells with IDIC layers yield higher photovoltages and photocurrents, and 45% enhanced efficiency compared with control devices without IDIC.