{"title":"Tailoring Self-Trapped Exciton Emission in 0D Indium-Based Perovskites by Solvent-Induced Crystal Structure Engineering","authors":"Yusheng Xu, Ruijing Yang, Qiudong Duan, Zhenbeina Deng, Tianyu Guo, Minghui Su, XianChang Ning, YouGui Yang, Yu Zha, Dacheng Zhou, Yong Yang, Qi Wang, Yugeng Wen, Jianbei Qiu","doi":"10.1002/lpor.202500005","DOIUrl":null,"url":null,"abstract":"0D indium-based all-inorganic metal halide perovskites offer great potential for multifunctional applications but face the challenges of poor structural adjustability and an incomplete dynamic picture of self-trapped exciton (STE) emissions. Here, a novel 0D Cs<sub>4</sub>InCl<sub>7</sub> single crystal is developed as a solvation bridge for phase transformations to either 0D Cs<sub>2</sub>InCl<sub>5</sub>·H<sub>2</sub>O via water or into 0D Cs<sub>3</sub>InCl<sub>6</sub> by methanol. The diversified crystal structures not only enrich the emission colors but also the difference in the coordination number and symmetry of Cs<sup>+</sup>, laying foundations for comprehending the influence of A-site on STE emissions. Steady-state and transient spectroscopy together with density functional theory simulations, reveal that low coordination geometry and charge symmetry of octahedron facilitate excited state distortions, leading to strong second-order Jahn-Teller (SOJT) effect for large Stokes shift of STE emissions. Multicolor tuning in Sb<sup>3+</sup>-doped Cs<sub>4</sub>InCl<sub>7</sub> under solvent and heat stimuli enables the extended optical applications in anti-counterfeiting, temperature sensing, and solvent sensors. The work offers an improved understanding of SOJT manipulation via atomic engineering of A-site in 0D lead-free perovskites and sheds light on their broad practical applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"32 1","pages":""},"PeriodicalIF":9.8000,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Laser & Photonics Reviews","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1002/lpor.202500005","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
0D indium-based all-inorganic metal halide perovskites offer great potential for multifunctional applications but face the challenges of poor structural adjustability and an incomplete dynamic picture of self-trapped exciton (STE) emissions. Here, a novel 0D Cs4InCl7 single crystal is developed as a solvation bridge for phase transformations to either 0D Cs2InCl5·H2O via water or into 0D Cs3InCl6 by methanol. The diversified crystal structures not only enrich the emission colors but also the difference in the coordination number and symmetry of Cs+, laying foundations for comprehending the influence of A-site on STE emissions. Steady-state and transient spectroscopy together with density functional theory simulations, reveal that low coordination geometry and charge symmetry of octahedron facilitate excited state distortions, leading to strong second-order Jahn-Teller (SOJT) effect for large Stokes shift of STE emissions. Multicolor tuning in Sb3+-doped Cs4InCl7 under solvent and heat stimuli enables the extended optical applications in anti-counterfeiting, temperature sensing, and solvent sensors. The work offers an improved understanding of SOJT manipulation via atomic engineering of A-site in 0D lead-free perovskites and sheds light on their broad practical applications.
期刊介绍:
Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications.
As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics.
The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.