1D Pyrrolidinium Lead Iodide for Efficient and Stable Perovskite Solar Cells

被引：26

作者：

Ngoc Duy Pham ^{[1
]}

Yang, Yang ^{[1
]}

Minh Tam Hoang ^{[1
]}

Wang, Tony ^{[1
]}

Tiong, Vincent Tiing ^{[1
]}

Wilson, Gregory Joseph ^{[2
]}

Wang, Hongxia ^{[1
]}

机构：

[1] Queensland Univ Technol, Sci & Engn Fac, Sch Chem Phys & Mech Engn, Brisbane, Qld 4001, Australia

[2] CSIRO Energy, Newcastle Energy Ctr, Mayfield West, NSW 2304, Australia

来源：

ENERGY TECHNOLOGY | 2020年 / 8卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

charge recombination; environmental stability; 1D perovskite; perovskite solar cells; photovoltaic performance; pyrrolidine; pyrrolidinium lead iodide; HIGH-PERFORMANCE; HALIDE PEROVSKITES; ENVIRONMENTAL STABILITY; LENGTHS; STATE;

D O I：

10.1002/ente.201900918

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Due to their superior environmental stability, utilization of low-dimensional perovskites in organometal halide solar cells (OMHSCs) has seen a sharp increase. Herein, a method to form 1D pyrrolidinium lead iodide (PyPbI3) in situ atop photoactive 3D methylammonium lead iodide (MAPbI(3)) using pyrrolidine posttreatment is reported. As compared with 3D MAPbI(3), 1D PyPbI3 has a wider bandgap and is more environmentally stable, and it serves as a tunneling contact to mitigate charge carrier recombination and as a robust barrier against environmental degradation when incorporated into OMHSCs. Accordingly, power conversion efficiencies of the resulting MAPbI(3) devices are enhanced from an average of 14.86% +/- 0.65% to 15.9% +/- 0.58% and their shelf-life stability is significantly prolonged.

引用

页数：7

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