Anisotropic ionic transportation performances of (100) and (112) planes in MAPbI3 single crystal

被引：16

作者：

Zuo, Zhiyuan ^{[1
,4
]}

Ding, Jianxu ^{[2
,3
,5
]}

Li, Yongfu ^{[1
]}

Zhao, Ying ^{[5
]}

Du, Songjie ^{[5
]}

机构：

[1] Shandong Univ, Adv Res Ctr Opt, Jinan 250100, Shandong, Peoples R China

[2] Shandong Univ Sci & Technol, State Key Lab Min Disaster Prevent & Control Cofou, Qingdao 266590, Peoples R China

[3] Shandong Univ Sci & Technol, Minist Sci & Technol, Qingdao 266590, Peoples R China

[4] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China

[5] Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266590, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2018年 / 99卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

MAPbI3 single crystal; Ion transportation; Anisotropic; PEROVSKITE SOLAR-CELLS; LEAD IODIDE; DIFFUSION; HYSTERESIS;

D O I：

10.1016/j.materresbull.2017.11.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Organic-Inorganic hybrid perovskites attract intensive attentions due to significant optoelectronic performances. However, abnormal phenomena such as photocurrent hysteresis and slow photoconductivity response caused by ion migration made ionic transportation properties to be a hot topic in this area. Thinking of serious influences such as efficiency decay of excited carrier separation and poor reliability are caused by ion migration, systematical research on this topic is still highly demanded. Here, anisotropic ionic transportation performances of (100) and (112) planes in MAPbI(3) single crystal have been investigated with various photon excitation conditions. Enhanced ionic conductance had been extracted on (112) plane both with and without illuminations. Comparing to exponential saturation revealed by the electrons, the ionic conductance exhibits a linear increase trends with incident light power in MAPbI(3).

引用

页码：466 / 470

页数：5

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