通过掺杂 Mn2+/Sb3+ 改善无铅 Cs4SnBr6 零维包晶石的光致发光特性

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2024-10-03 DOI:10.1016/j.jlumin.2024.120930

Yaqian Huang, Xinye Lu, Haixia Wu, Jisheng Xu, Zhenxu Lin, Yanqing Guo, Rui Huang

{"title":"通过掺杂 Mn2+/Sb3+ 改善无铅 Cs4SnBr6 零维包晶石的光致发光特性","authors":"Yaqian Huang, Xinye Lu, Haixia Wu, Jisheng Xu, Zhenxu Lin, Yanqing Guo, Rui Huang","doi":"10.1016/j.jlumin.2024.120930","DOIUrl":null,"url":null,"abstract":"<div><div>Zero-dimensional tin-based halide perovskites have emerged as promising materials for optoelectronic applications owing to their outstanding optical properties. However, improving their PL efficiency and stability remains a significant challenge. Here, we demonstrate a novel codoping strategy by introducing Mn2+/Sb3+ ions to enhance both the PL intensity and thermal stability of Cs4SnBr6 perovskites. Our experiments reveal that Mn2+/Sb3+ incorporation increases light emission from self-trapped excitons (STEs) in Cs4SnBr6, achieving a PL quantum yield of approximately 67.7 %. Additionally, the doped samples show remarkable thermal stability. Detailed analyses, including X-ray diffraction, energy-dispersive spectroscopy, time-resolved PL, and temperature-dependent PL, suggest that the improved emission is driven by Mn2+/Sb3+-induced distortion of the [SnBr6]4- octahedra, which strengthens electron-phonon coupling and increases STE binding energy.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"277 ","pages":"Article 120930"},"PeriodicalIF":3.3000,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Improving photoluminescence properties of lead-free Cs4SnBr6 zero-dimensional perovskite via Mn2+/Sb3+ Co-doping\",\"authors\":\"Yaqian Huang, Xinye Lu, Haixia Wu, Jisheng Xu, Zhenxu Lin, Yanqing Guo, Rui Huang\",\"doi\":\"10.1016/j.jlumin.2024.120930\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Zero-dimensional tin-based halide perovskites have emerged as promising materials for optoelectronic applications owing to their outstanding optical properties. However, improving their PL efficiency and stability remains a significant challenge. Here, we demonstrate a novel codoping strategy by introducing Mn2+/Sb3+ ions to enhance both the PL intensity and thermal stability of Cs4SnBr6 perovskites. Our experiments reveal that Mn2+/Sb3+ incorporation increases light emission from self-trapped excitons (STEs) in Cs4SnBr6, achieving a PL quantum yield of approximately 67.7 %. Additionally, the doped samples show remarkable thermal stability. Detailed analyses, including X-ray diffraction, energy-dispersive spectroscopy, time-resolved PL, and temperature-dependent PL, suggest that the improved emission is driven by Mn2+/Sb3+-induced distortion of the [SnBr6]4- octahedra, which strengthens electron-phonon coupling and increases STE binding energy.</div></div>\",\"PeriodicalId\":16159,\"journal\":{\"name\":\"Journal of Luminescence\",\"volume\":\"277 \",\"pages\":\"Article 120930\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2024-10-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Luminescence\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022231324004940\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Luminescence","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022231324004940","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}

引用次数: 0

摘要

零维锡基卤化物过氧化物因其出色的光学特性，已成为光电应用领域前景广阔的材料。然而，提高其聚光效率和稳定性仍是一项重大挑战。在这里，我们展示了一种新颖的掺杂策略，即通过引入 Mn2+/Sb3+ 离子来增强 Cs4SnBr6 包晶的聚光强度和热稳定性。我们的实验发现，掺入 Mn2+/Sb3+ 增加了 Cs4SnBr6 中自俘获激子 (STE) 的光发射，实现了约 67.7% 的 PL 量子产率。此外，掺杂样品还表现出显著的热稳定性。包括 X 射线衍射、能量色散光谱、时间分辨聚光和随温度变化的聚光在内的详细分析表明，Mn2+/Sb3+ 诱导的 [SnBr6]4- 八面体畸变增强了电子-声子耦合并提高了 STE 结合能，从而推动了发射率的提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Improving photoluminescence properties of lead-free Cs4SnBr6 zero-dimensional perovskite via Mn2+/Sb3+ Co-doping

Zero-dimensional tin-based halide perovskites have emerged as promising materials for optoelectronic applications owing to their outstanding optical properties. However, improving their PL efficiency and stability remains a significant challenge. Here, we demonstrate a novel codoping strategy by introducing Mn²⁺/Sb³⁺ ions to enhance both the PL intensity and thermal stability of Cs₄SnBr₆ perovskites. Our experiments reveal that Mn²⁺/Sb³⁺ incorporation increases light emission from self-trapped excitons (STEs) in Cs₄SnBr₆, achieving a PL quantum yield of approximately 67.7 %. Additionally, the doped samples show remarkable thermal stability. Detailed analyses, including X-ray diffraction, energy-dispersive spectroscopy, time-resolved PL, and temperature-dependent PL, suggest that the improved emission is driven by Mn²⁺/Sb³⁺-induced distortion of the [SnBr₆]^4- octahedra, which strengthens electron-phonon coupling and increases STE binding energy.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.