2020Nanoscale

Zn doped MAPbBr₃ single crystal with advanced structural and optical stability achieved by strain compensation

Ruxue Li, Shaoqing Chen, Xia Li, Guoxin Yin, Youpin Gong, Jiahao Yu, Guotao Pang, Jianxun Liu, Yanjun Liu, Zhenhua Ni, Liyuan Zhang, Rui Chen, Hsing-Lin Wang

Nanoscale · 12, 3692-3700 (2020)

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DOI 10.1039/c9nr09657d

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Introduction

The study examines Zn doping in MAPbBr₃ single crystals under illumination. The authors relate improved structural and optical stability to strain compensation.

A closer reading

The useful comparison is what persists under illumination, rather than the size of an initial optical signal. Exposure time and temperature are important when judging the stability advantage attributed to doping.