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Halide Perovskite: Structures, Dynamics and Performance

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (10 January 2023) | Viewed by 1735

Special Issue Editor


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Guest Editor
1. Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
2. Department of Materials Science and Engineering, University of California Los Angeles, Los Angeles, CA 90095, USA
Interests: atomic layer deposition; organic solar cells; halide perovskite; glass and ceramics; batteries; materials science

Special Issue Information

Dear Colleagues,

Halide perovskite semiconductors have attracted tremendous interest from both academia and industry. Characterized by the surge of power conversion efficiency of solar cells based on its lead iodide form, this type of semiconductor is considered a promising candidate for next-generation display panels, radiation detectors, optical sensors, scintillators, etc. Thin films, single crystals, nanocrystals, and even 2D perovskites have been developed for these materials, and the realm of possibilities has not yet fully been explored.  

Behind this huge success lie the unique structural and dynamic characteristics of halide perovskites, which have contributed to their versatile processing capability, remarkable optoelectronic performance, and rapid development. At the same time, these features inevitably pose some major challenges when it comes to commercializing this technology, such as lead toxicity, long-term stability, etc.

Numerous studies are being carried out daily to investigate methodologies to resolve these challenges. The aim of this Special Issue, thus, is to collect the latest progress and understanding of halide perovskite semiconductors. We are looking for studies that focus on the structure, dynamics. and performance of existing halide perovskites and their devices, as well as studies that explore new chemistries and phases of this materials family. Research articles, perspectives, and review papers in this intriguing field are welcome in this Special Issue.

Dr. Tianyi Huang
Guest Editor

Manuscript Submission Information

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Keywords

  • halide perovskite
  • structure
  • dynamics
  • performance
  • stability

Published Papers (1 paper)

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Research

8 pages, 1524 KiB  
Article
Excitonic Enhancement and Excited Excitonic States in CsPbBr3 Halide Perovskite Single Crystals
by Anna Yu. Samsonova, Vsevolod I. Yudin, Anna V. Shurukhina and Yury V. Kapitonov
Materials 2023, 16(1), 185; https://doi.org/10.3390/ma16010185 - 25 Dec 2022
Cited by 4 | Viewed by 1473
Abstract
Halide perovskites are novel photonics materials promising numerous applications in fields such as photovoltaics, LED light sources, microlasers, and radiation detectors. Many halide perovskites are direct-gap semiconductors, and Wannier–Mott excitons play a significant role in their optical properties near the fundamental absorption edge. [...] Read more.
Halide perovskites are novel photonics materials promising numerous applications in fields such as photovoltaics, LED light sources, microlasers, and radiation detectors. Many halide perovskites are direct-gap semiconductors, and Wannier–Mott excitons play a significant role in their optical properties near the fundamental absorption edge. The high oscillator strength of these states favors applications where efficient interaction with light is required. In this work, to study excitonic states in CsPbBr3 halide perovskite single crystals, the reflection spectroscopy at temperatures from 4 K was used. A reflection coefficient up to 70% was observed for the n=1 exciton state, followed by weak excited states of excitons with n=2 and n=3. It should be noted that the Sommerfeld enhancement factor should be considered for a correct description of the behavior of the dielectric constant, taking into account excitonic effects. Full article
(This article belongs to the Special Issue Halide Perovskite: Structures, Dynamics and Performance)
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