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引用次数: 0
摘要
具有明确表面和边缘的拓扑材料已成为一个突出的研究课题。作为拓扑绝缘体,MnBi2Te4 薄膜具有独特的表面,具有优异的电子传输特性,在低噪声、高灵敏度光电探测中具有良好的应用前景。本文报告了一种制备量子锰铋碲薄膜的直接、高效、经济的热蒸发方法,以及对其光电检测性能的研究。这些薄膜可用于制造阵列器件,其光电探测器在室温下的响应电流可达 97 mA W-1,响应速度为 30 d,光电性能衰减小于 15%。我们的研究为拓扑材料在光电探测领域的应用提供了新思路,并为未来设计和开发高性能光电探测器奠定了坚实的基础。
MnBi2Te4 Thin-Film Photodetector with a Millisecond Response Speed and Long-Term Air Stability
Topological materials with well-defined surfaces and edges have become a prominent research topic. As topological insulators, MnBi2Te4 thin films, with their unique surfaces, exhibit exceptional electron transport properties and good applicability in low-noise, high-sensitivity photoelectric detection. This paper reports a straightforward, efficient, and cost-effective thermal evaporation method for preparing quantum MnBi2Te4 thin films, along with an investigation into their photoelectric detection performance. These films can be used to fabricate array devices, with the resulting photodetectors achieving a response current of 97 mA W−1 at room temperature and a response speed of <1 ms. Moreover, they demonstrate stability in the air for >30 d, with the photoelectric performance degrading by <15%. Our research introduces a new application for topological materials in photoelectric detection and establishes a strong foundation for the design and development of high-performance photodetectors in the future.
CoatingsMaterials Science-Surfaces, Coatings and Films
CiteScore
5.00
自引率
11.80%
发文量
1657
审稿时长
1.4 months
期刊介绍:
Coatings is an international, peer-reviewed open access journal of coatings and surface engineering. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided. There are, in addition, unique features of this journal:
* manuscripts regarding research proposals and research ideas will be particularly welcomed
* electronic files or software regarding the full details of the calculation and experimental procedure - if unable to be published in a normal way - can be deposited as supplementary material