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Chemical Communications

Self-Trapped Emissions in 2D Lead-Free Halide Perovskites Driven by Divalent Spacer Cations

Andre Luiz Martins de Freitas,   Aryane Tofanello,   Naidel A. M. S. Caturello,   Karla Kariny F. Barbosa  and  Fabio Furlan Ferreira  

Abstract

The mono- and divalent spacer cation investigation in sodium/indium-based 2D double perovskites revealed significant impacts on optoelectronic properties due to distortions in the inorganic layers. The strong electron-phonon coupling in a novel lead-free Dion-Jacobson phase highlights a promising class for broad-emission devices based on self-trapped excitons (STE), offering enhanced structural stability.

  • This article is part of the themed collection: Perovskites
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Article information

DOI
https://doi.org/10.1039/D4CC03192J
Article type
Communication
Submitted
28 Jun 2024
Accepted
29 Jul 2024
First published
30 Jul 2024

Chem. Commun., 2024, Accepted Manuscript

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Self-Trapped Emissions in 2D Lead-Free Halide Perovskites Driven by Divalent Spacer Cations

A. L. M. de Freitas, A. Tofanello, N. A. M. S. Caturello, K. K. F. Barbosa and F. F. Ferreira, Chem. Commun., 2024, Accepted Manuscript , DOI: 10.1039/D4CC03192J

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