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Issue 2, 2021
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Nanoscale light- and voltage-induced lattice strain in perovskite thin films

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Abstract

We report on localized nonlinear lattice deformation and nanoscale structural rearrangement in methylammonium lead triiodide films triggered by the combined action of light and voltage. These effects, revealed by second harmonic piezoresponse force microscopy, are connected with organic cation motion, implicating localized cation migration as a key contributor to perovskite optoelectronic device instability under operating conditions.

Graphical abstract: Nanoscale light- and voltage-induced lattice strain in perovskite thin films

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Article information


Submitted
19 Oct 2020
Accepted
31 Dec 2020
First published
04 Jan 2021

Nanoscale, 2021,13, 746-752
Article type
Communication

Nanoscale light- and voltage-induced lattice strain in perovskite thin films

H. Qiu and J. M. Mativetsky, Nanoscale, 2021, 13, 746
DOI: 10.1039/D0NR07476D

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