Electron irradiation induced aging effects on radiative recombination properties of quadruple cation organic-inorganic perovskite layers

Author:

Aversa Pierfrancesco,Ӧz Senol,Jung Eunhwan,Plantevin Olivier,Cavani Olivier,Ollier Nadège,Bourée Jean-Eric,Geffroy Bernard,Miyasaka Tsutomu,Mathur Sanjay,Corbel Catherine

Abstract

AbstractUnderstanding the role of defects in hybrid organic inorganic perovskites (HOIPs) is critically important to engineer the stability and performance of photovoltaic devices based on HOIPs. Recent reports on multi-cation compositions of general formula (A1,A2,A3,A4)Pb(X1,X2,X3)3, where the A sites can be occupied by a distribution of 2–4 metallic/organic cations and X sites with halide anions have shown stabilization effects against the well-known methyl ammonium lead triiodide (CH3NH3PbI3), although the underlying mechanism is not fully elucidated. Herein, polycrystalline layers of 4APb(IBr)3 perovskite, where A is occupied by a combination of Cs+ (cesium ion), GA+ (guanidinium), MA+ (methylammonium), and FA+ (formamidinium) ions were synthesized. To gain insight on the role of intrinsic defects, electron irradiation was used for introducing point defects in a controlled way in the quadruple-cation HOIPs. Our results show that the engineered defects in perovskites strongly influenced the absorption, photoluminescence, and time-resolved photoluminescence of these materials, probably due to introduction of additional energy levels that modify electronic and light emitting properties of the material. Furthermore, the irradiation-induced defects were found to strongly affect the aging behavior of HOIPs and modify their radiative recombination properties.

Funder

Universität zu Köln

Publisher

Springer Science and Business Media LLC

Subject

Waste Management and Disposal,Renewable Energy, Sustainability and the Environment,Biomaterials,Ceramics and Composites

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3