Xiujun Dong, Yuan Ma, Suyu Huo, Laqin Chen, Yanli Dong, Fei Yang, Xiuru Yao and Yongjun Bao*,
{"title":"sn基钙钛矿单晶微方板（MSPs）的室温激光","authors":"Xiujun Dong, Yuan Ma, Suyu Huo, Laqin Chen, Yanli Dong, Fei Yang, Xiuru Yao and Yongjun Bao*, ","doi":"10.1021/acs.jpclett.5c0016410.1021/acs.jpclett.5c00164","DOIUrl":null,"url":null,"abstract":"<p >Lead-free Sn-based metal halide perovskites are low-cost, high-efficiency photoelectric materials with significant potential for micro/nanolasers, addressing the biological and environmental toxicity of lead. This study explores the lasing behavior of single-crystal CsSnBr<sub>3</sub> microsquare plates (MSPs) synthesized via two-step high-temperature vapor-phase epitaxy with steady-state and time-resolved photoluminescence (PL and TRPL) spectroscopies. The lasing behavior, dominated by excitons from 193 to 313 K, shows a lasing threshold of 122.5 μJ/cm<sup>2</sup> at room temperature, supported by an exciton binding energy of 63.67 meV and a near-unity power-law relationship (<i>k</i> ≈ 1) between PL intensity and pump fluence. The characteristic temperature of the lasing threshold indicates the notable thermal stability of CsSnBr<sub>3</sub> MSPs. Moisture is identified as a significant factor causing lasing failure in Sn-based perovskite MSPs. High crystal quality is essential for achieving lasing in micro/nanostructures based on Sn-based perovskites. These findings highlight the potential of high-temperature vapor epitaxial growth for Sn-based perovskite micro/nanolasers, paving the way for environmentally and biologically friendly optoelectronic devices.</p>","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"16 11","pages":"2705–2712 2705–2712"},"PeriodicalIF":4.6000,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Room-Temperature Lasing of Sn-Based Perovskite Single-Crystal Microsquare Plates (MSPs)\",\"authors\":\"Xiujun Dong, Yuan Ma, Suyu Huo, Laqin Chen, Yanli Dong, Fei Yang, Xiuru Yao and Yongjun Bao*, \",\"doi\":\"10.1021/acs.jpclett.5c0016410.1021/acs.jpclett.5c00164\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Lead-free Sn-based metal halide perovskites are low-cost, high-efficiency photoelectric materials with significant potential for micro/nanolasers, addressing the biological and environmental toxicity of lead. This study explores the lasing behavior of single-crystal CsSnBr<sub>3</sub> microsquare plates (MSPs) synthesized via two-step high-temperature vapor-phase epitaxy with steady-state and time-resolved photoluminescence (PL and TRPL) spectroscopies. The lasing behavior, dominated by excitons from 193 to 313 K, shows a lasing threshold of 122.5 μJ/cm<sup>2</sup> at room temperature, supported by an exciton binding energy of 63.67 meV and a near-unity power-law relationship (<i>k</i> ≈ 1) between PL intensity and pump fluence. The characteristic temperature of the lasing threshold indicates the notable thermal stability of CsSnBr<sub>3</sub> MSPs. Moisture is identified as a significant factor causing lasing failure in Sn-based perovskite MSPs. High crystal quality is essential for achieving lasing in micro/nanostructures based on Sn-based perovskites. These findings highlight the potential of high-temperature vapor epitaxial growth for Sn-based perovskite micro/nanolasers, paving the way for environmentally and biologically friendly optoelectronic devices.</p>\",\"PeriodicalId\":62,\"journal\":{\"name\":\"The Journal of Physical Chemistry Letters\",\"volume\":\"16 11\",\"pages\":\"2705–2712 2705–2712\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2025-03-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Journal of Physical Chemistry Letters\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acs.jpclett.5c00164\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of Physical Chemistry Letters","FirstCategoryId":"1","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.jpclett.5c00164","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Room-Temperature Lasing of Sn-Based Perovskite Single-Crystal Microsquare Plates (MSPs)
Lead-free Sn-based metal halide perovskites are low-cost, high-efficiency photoelectric materials with significant potential for micro/nanolasers, addressing the biological and environmental toxicity of lead. This study explores the lasing behavior of single-crystal CsSnBr3 microsquare plates (MSPs) synthesized via two-step high-temperature vapor-phase epitaxy with steady-state and time-resolved photoluminescence (PL and TRPL) spectroscopies. The lasing behavior, dominated by excitons from 193 to 313 K, shows a lasing threshold of 122.5 μJ/cm2 at room temperature, supported by an exciton binding energy of 63.67 meV and a near-unity power-law relationship (k ≈ 1) between PL intensity and pump fluence. The characteristic temperature of the lasing threshold indicates the notable thermal stability of CsSnBr3 MSPs. Moisture is identified as a significant factor causing lasing failure in Sn-based perovskite MSPs. High crystal quality is essential for achieving lasing in micro/nanostructures based on Sn-based perovskites. These findings highlight the potential of high-temperature vapor epitaxial growth for Sn-based perovskite micro/nanolasers, paving the way for environmentally and biologically friendly optoelectronic devices.
期刊介绍：
The Journal of Physical Chemistry (JPC) Letters is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, chemical physicists, physicists, material scientists, and engineers. An important criterion for acceptance is that the paper reports a significant scientific advance and/or physical insight such that rapid publication is essential. Two issues of JPC Letters are published each month.
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