π‐Conjugated Lewis Base: Efficient Trap‐Passivation and Charge‐Extraction for Hybrid Perovskite Solar Cells

2016625 citationsJournal Articlegreen Open Access

Authors

Yuze Lin · University of Nebraska–Lincoln

Liang Shen · University of Nebraska–Lincoln

Jun Dai · University of Nebraska–Lincoln

Yehao Deng · University of Nebraska–Lincoln

Yang Wu · Xi'an Jiaotong University

Yang Bai · University of Nebraska–Lincoln

Xiaopeng Zheng ·

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.

Topics & Keywords

Perovskite Materials and Applications Organic Electronics and Photovoltaics Conducting polymers and applications

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Advanced Materials

Volume 29, Issue 7

DOI: 10.1002/adma.201604545

Field-Weighted Citation Impact: 36.91