Issue 7, 2024

Quaternary CsPbX3 (X = Cl1−xBrx, Br1−xIx) alloy microplates synthesized by single-step chemical vapor deposition and their two-photon absorption (TPA) properties

Abstract

Because of their well-defined light–matter interaction volume, high-quality single-crystalline nature, and precise bandgap tunability, all-inorganic cesium lead halide (CsPbX3 (X = Cl, Br, I)) perovskite (IHP) microplates are of fundamental and technological interest today. Here, we report the synthesis and properties of ternary CsPbX3 (X = Cl, Br, I) and quaternary CsPbX3 (X = Cl1−xBrx, Br1−xIx) alloy microplates grown by the single-step chemical vapor deposition (CVD) process. Smooth-faceted, single crystalline IHP alloy microplates with good vertical and lateral composition uniformity are achieved. These microplates exhibit strong photoluminescence and are thermally stable with no observable photodegradation. More importantly, two-photon absorption (TPA) is demonstrated in quaternary CsPb(Cl1−xBrx)3 and CsPb(Br1−xIx)3 IHP alloy microplates, which adds a new dimension to the functionalities of IHP microplates for nonlinear optical (NLO) applications. We believe that this work will open up multiple avenues for the development of microstructure compatible integrated optoelectronic and photonic applications and will certainly enhance the fundamental NLO research.

Graphical abstract: Quaternary CsPbX3 (X = Cl1−xBrx, Br1−xIx) alloy microplates synthesized by single-step chemical vapor deposition and their two-photon absorption (TPA) properties

Article information

Article type
Paper
Submitted
01 сен 2023
Accepted
04 янв 2024
First published
04 янв 2024

J. Mater. Chem. C, 2024,12, 2561-2570

Quaternary CsPbX3 (X = Cl1−xBrx, Br1−xIx) alloy microplates synthesized by single-step chemical vapor deposition and their two-photon absorption (TPA) properties

M. K. Hossain, W. Qarony, Y. Wang, C. K. G. Kwok, K. O. Egbo, Y. H. Tsang, J. C. Ho and K. M. Yu, J. Mater. Chem. C, 2024, 12, 2561 DOI: 10.1039/D3TC03166G

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