利用振荡辅助延迟荧光增强掺锰 CsPbBr3 纳米晶体中的能量传递

IF 19.3 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2024-10-18 DOI:10.1021/acsenergylett.4c0259210.1021/acsenergylett.4c02592

Subham Das, Sudipa Aich, Aswathy M and Ranjani Viswanatha*,

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引用次数: 0

摘要

本研究利用佛斯特共振能量转移（FRET）技术探讨了掺锰 CsPbBr3 纳米晶体中的振动辅助延迟荧光（VADF）。由于宿主荧光效率的提高，锰掺杂显著增强了 FRET 效率，这表明 VADF 增加了辐射途径。我们观察到，锰促进了电荷载流子的高效反向转移，改善了向罗丹明 6G（R6G）等受体分子的能量转移。通过掺杂锰来调整光学特性的简易性，为提高光电应用中供体-受体系统的能量效率提供了一种很有前景的方法。然而，有必要对卤化物浓度、受体分子和电子传递机制进行进一步研究，以优化这些系统，实现有效的光能收集。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Harnessing Vibrationally Assisted Delayed Fluorescence for Enhanced Energy Transfer in Mn-Doped CsPbBr3 Nanocrystals

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Harnessing Vibrationally Assisted Delayed Fluorescence for Enhanced Energy Transfer in Mn-Doped CsPbBr3 Nanocrystals

This study explores vibrationally assisted delayed fluorescence (VADF) in Mn-doped CsPbBr₃ nanocrystals using Förster resonance energy transfer (FRET). Mn doping enhances the FRET efficiency significantly due to an increase in host fluorescence efficiency, indicating an increase in the radiative pathways due to VADF. We observed that Mn facilitates efficient back-transfer of charge carriers, improving energy transfer to acceptor molecules such as Rhodamine 6G (R6G). The simplicity of tuning optical properties through Mn doping presents a promising method to enhance the energy efficiency in donor–acceptor systems for optoelectronic applications. However, further research on halide concentrations, acceptor molecules, and electron transfer mechanisms is necessary to optimize these systems for effective light energy harvesting.

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来源期刊

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.