Circularly polarized light emission and detection by chiral inorganic semiconductors.

IF 4.1 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Frontiers of Optoelectronics Pub Date : 2024-05-31 DOI:10.1007/s12200-024-00120-8

Zha Li, Wancai Li, Dehui Li, Wei Tang, Huageng Liang, Huaibing Song, Chao Chen, Liang Gao, Jiang Tang

引用次数: 0

Abstract

Chiral inorganic semiconductors with high dissymmetric factor are highly desirable, but it is generally difficult to induce chiral structure in inorganic semiconductors because of their structure rigidity and symmetry. In this study, we introduced chiral ZnO film as hard template to transfer chirality to CsPbBr₃ film and PbS quantum dots (QDs) for circularly polarized light (CPL) emission and detection, respectively. The prepared CsPbBr₃/ZnO thin film exhibited CPL emission at 520 nm and the PbS QDs/ZnO film realized CPL detection at 780 nm, featuring high dissymmetric factor up to around 0.4. The electron transition based mechanism is responsible for chirality transfer.

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手性无机半导体的圆偏振光发射和探测。

具有高不对称因子的手性无机半导体是非常理想的，但由于无机半导体的结构刚性和对称性，在无机半导体中诱导手性结构一般比较困难。在本研究中，我们引入了手性 ZnO 薄膜作为硬模板，将手性转移到 CsPbBr3 薄膜和 PbS 量子点（QDs）上，分别用于圆偏振光（CPL）发射和检测。所制备的 CsPbBr3/ZnO 薄膜可在 520 纳米波长处发射圆偏振光，而 PbS 量子点/ZnO 薄膜可在 780 纳米波长处实现圆偏振光检测，其不对称系数高达 0.4 左右。基于电子转变的机制是手性转移的原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Frontiers of Optoelectronics ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

7.80

自引率

0.00%

发文量

583

期刊介绍： Frontiers of Optoelectronics seeks to provide a multidisciplinary forum for a broad mix of peer-reviewed academic papers in order to promote rapid communication and exchange between researchers in China and abroad. It introduces and reflects significant achievements being made in the field of photonics or optoelectronics. The topics include, but are not limited to, semiconductor optoelectronics, nano-photonics, information photonics, energy photonics, ultrafast photonics, biomedical photonics, nonlinear photonics, fiber optics, laser and terahertz technology and intelligent photonics. The journal publishes reviews, research articles, letters, comments, special issues and so on. Frontiers of Optoelectronics especially encourages papers from new emerging and multidisciplinary areas, papers reflecting the international trends of research and development, and on special topics reporting progress made in the field of optoelectronics. All published papers will reflect the original thoughts of researchers and practitioners on basic theories, design and new technology in optoelectronics. Frontiers of Optoelectronics is strictly peer-reviewed and only accepts original submissions in English. It is a fully OA journal and the APCs are covered by Higher Education Press and Huazhong University of Science and Technology. ● Presents the latest developments in optoelectronics and optics ● Emphasizes the latest developments of new optoelectronic materials, devices, systems and applications ● Covers industrial photonics, information photonics, biomedical photonics, energy photonics, laser and terahertz technology, and more

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