用于激光应用的准二维溴化铅包荧光体的低阈值放大自发辐射

IF 16 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

ACS Nano Pub Date : 2025-03-10 DOI:10.1021/acsnano.5c00184

Jiying Xu, Yichen Yang, Runchen Lai, Yangning Fan, Shengnan Liu, Gan Zhang, Zixiang Wang, Baodan Zhao, Chen Zou, Dawei Di

{"title":"用于激光应用的准二维溴化铅包荧光体的低阈值放大自发辐射","authors":"Jiying Xu, Yichen Yang, Runchen Lai, Yangning Fan, Shengnan Liu, Gan Zhang, Zixiang Wang, Baodan Zhao, Chen Zou, Dawei Di","doi":"10.1021/acsnano.5c00184","DOIUrl":null,"url":null,"abstract":"Quasi-two-dimensional (quasi-2D) lead halide perovskite materials have shown great potential as gain media for amplified spontaneous emission (ASE) and lasing. Due to the complexity of the mixed-dimensional perovskite materials, factors influencing their ASE thresholds remain unclear, limiting the pace of development in this emerging area of research. Here, we report exceptionally low ASE thresholds of ∼2.23 μJ cm–2 with high stability in quasi-2D lead–bromide perovskite semiconductors. Improved gain coefficients, suppressed Auger recombination, effective coupling between the optical field and the gain medium, and minimized scattering losses are found to be some of the key contributors to the low-threshold ASE. The optimized materials lead to the demonstration of a low-threshold, single-mode perovskite laser based on a distributed feedback (DFB) optical resonator, yielding a low lasing threshold of 0.69 μJ cm–2. We expect our findings to clarify some of the key design principles of low-threshold ASE in perovskite semiconductors for lasing applications.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"21 1","pages":""},"PeriodicalIF":16.0000,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Low-Threshold Amplified Spontaneous Emission from Quasi-2D Lead–Bromide Perovskites for Lasing Applications\",\"authors\":\"Jiying Xu, Yichen Yang, Runchen Lai, Yangning Fan, Shengnan Liu, Gan Zhang, Zixiang Wang, Baodan Zhao, Chen Zou, Dawei Di\",\"doi\":\"10.1021/acsnano.5c00184\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Quasi-two-dimensional (quasi-2D) lead halide perovskite materials have shown great potential as gain media for amplified spontaneous emission (ASE) and lasing. Due to the complexity of the mixed-dimensional perovskite materials, factors influencing their ASE thresholds remain unclear, limiting the pace of development in this emerging area of research. Here, we report exceptionally low ASE thresholds of ∼2.23 μJ cm–2 with high stability in quasi-2D lead–bromide perovskite semiconductors. Improved gain coefficients, suppressed Auger recombination, effective coupling between the optical field and the gain medium, and minimized scattering losses are found to be some of the key contributors to the low-threshold ASE. The optimized materials lead to the demonstration of a low-threshold, single-mode perovskite laser based on a distributed feedback (DFB) optical resonator, yielding a low lasing threshold of 0.69 μJ cm–2. We expect our findings to clarify some of the key design principles of low-threshold ASE in perovskite semiconductors for lasing applications.\",\"PeriodicalId\":21,\"journal\":{\"name\":\"ACS Nano\",\"volume\":\"21 1\",\"pages\":\"\"},\"PeriodicalIF\":16.0000,\"publicationDate\":\"2025-03-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Nano\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1021/acsnano.5c00184\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Nano","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acsnano.5c00184","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

准二维卤化铅钙钛矿材料作为放大自发发射（ASE）和激光的增益介质显示出巨大的潜力。由于混合维钙钛矿材料的复杂性，影响其ASE阈值的因素尚不清楚，限制了这一新兴研究领域的发展步伐。在这里，我们报道了准二维溴化铅钙钛矿半导体中异常低的ASE阈值为~ 2.23 μJ cm-2，具有高稳定性。增益系数的提高、俄歇复合的抑制、光场与增益介质的有效耦合以及散射损耗的最小化是实现低阈值ASE的关键因素。优化后的材料实现了基于分布式反馈（DFB）光腔的低阈值单模钙钛矿激光器，激光阈值低至0.69 μJ cm-2。我们希望我们的研究结果能够澄清钙钛矿半导体中用于激光应用的低阈值ASE的一些关键设计原则。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Low-Threshold Amplified Spontaneous Emission from Quasi-2D Lead–Bromide Perovskites for Lasing Applications

查看原文本刊更多论文

Low-Threshold Amplified Spontaneous Emission from Quasi-2D Lead–Bromide Perovskites for Lasing Applications

Quasi-two-dimensional (quasi-2D) lead halide perovskite materials have shown great potential as gain media for amplified spontaneous emission (ASE) and lasing. Due to the complexity of the mixed-dimensional perovskite materials, factors influencing their ASE thresholds remain unclear, limiting the pace of development in this emerging area of research. Here, we report exceptionally low ASE thresholds of ∼2.23 μJ cm^–2 with high stability in quasi-2D lead–bromide perovskite semiconductors. Improved gain coefficients, suppressed Auger recombination, effective coupling between the optical field and the gain medium, and minimized scattering losses are found to be some of the key contributors to the low-threshold ASE. The optimized materials lead to the demonstration of a low-threshold, single-mode perovskite laser based on a distributed feedback (DFB) optical resonator, yielding a low lasing threshold of 0.69 μJ cm^–2. We expect our findings to clarify some of the key design principles of low-threshold ASE in perovskite semiconductors for lasing applications.

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

ACS Nano 工程技术-材料科学：综合

CiteScore

26.00

自引率

4.10%

发文量

1627

审稿时长

1.7 months

期刊介绍： ACS Nano, published monthly, serves as an international forum for comprehensive articles on nanoscience and nanotechnology research at the intersections of chemistry, biology, materials science, physics, and engineering. The journal fosters communication among scientists in these communities, facilitating collaboration, new research opportunities, and advancements through discoveries. ACS Nano covers synthesis, assembly, characterization, theory, and simulation of nanostructures, nanobiotechnology, nanofabrication, methods and tools for nanoscience and nanotechnology, and self- and directed-assembly. Alongside original research articles, it offers thorough reviews, perspectives on cutting-edge research, and discussions envisioning the future of nanoscience and nanotechnology.