April 7 - 11, 2025
Seattle, Washington
Symposium Supporters
2025 MRS Spring Meeting & Exhibit
EL09.05.10

In situ Radiation-Induced Instability Behaviour of Organic-Inorganic Halide Perovskite Single Crystals

When and Where

Apr 8, 2025
5:00pm - 7:00pm
Summit, Level 2, Flex Hall C

Presenter(s)

Co-Author(s)

Ruitian Chen1,Yu Zou1

University of Toronto1

Abstract

Ruitian Chen1,Yu Zou1

University of Toronto1
Organic-inorganic halide perovskites (OIHPs) are promising optoelectronic and semiconductor materials, but their stability issues under external stimuli impede their practical application and commercial viability. Here we perform high energy electron beam and X-ray beam radiation on OIHP single crystals to investigate their instability behaviour. In situ SEM imaging shows the whole process of cracking on the crystal surface, and in situ synchrotron XRD presents the composition changes for OIHP single crystals under X-ray radiation. We propose a mechanism based on the energy conversion to explain the phenomena of cracking and composition changes. In addition, we conduct nanoindentation tests to study the effects of beam radiation on their mechanical performances which are closely related to their application value.

Keywords

in situ | perovskites | radiation effects

Symposium Organizers

Bin Chen, Northwestern University
Lethy Krishnan Jagadamma, University of St. Andrews
Giulia Grancini, University of Pavia
Yi Hou, National University of Singapore

Symposium Support

Gold
Singfilm Solar Pte. Ltd

Session Chairs

Benjamin Gallant
Yuan Liu

In this Session