Issue 45, 2020

Phonon, thermal, and thermo-optical properties of halide perovskites

Abstract

Metal halide perovskites are semiconductors with many fascinating characteristics and their widespread use in optoelectronic devices has been expected. High-quality thin films and single crystals can be fabricated by simple chemical solution processes and their fundamental electrical, optical, and thermal properties can be changed significantly by compositional substitution, in particular halogen ions. In this perspective, we provide an overview of phonon and thermal properties of metal halide perovskites, which play a decisive role in determining device performance. After a brief introduction to fundamental material properties, longitudinal-optical phonons and unusual thermal properties of metal halide perovskites are discussed. Remarkably, they possess very low thermal conductivities and very large thermal expansion coefficients despite their crystalline nature. In line with these discussions, we present optical properties governed by the strong electron–phonon interactions and the unusual thermal properties. By showing their unique thermo-optic responses and novel application examples, we highlight some aspects of the unusual thermal properties.

Graphical abstract: Phonon, thermal, and thermo-optical properties of halide perovskites

Article information

Article type
Perspective
Submitted
21 Aug 2020
Accepted
29 Sep 2020
First published
29 Sep 2020

Phys. Chem. Chem. Phys., 2020,22, 26069-26087

Phonon, thermal, and thermo-optical properties of halide perovskites

T. Handa, T. Yamada, M. Nagai and Y. Kanemitsu, Phys. Chem. Chem. Phys., 2020, 22, 26069 DOI: 10.1039/D0CP04426A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements