等离激元诱导的宽光谱二硫化钼异质结器件
黄明

湖南大学，湖南长沙，410082；

摘要：随着光电技术的持续发展，光电探测器在成像技术、光谱分析以及通信等多个领域扮演着关键角色。然而，采用过渡金属二硫化物（TMD）材料的光电器件，因载流子迁移率较低及光与物质相互作用较弱等固有缺陷，面临着在新型探测器应用中展现优异性能的难题。本论文中，我们报告了利用化学气相沉积（CVD）技术成功合成单层MoS2，并通过微纳加工技术在MoS2表面构造等离子体纳米结构的过程。借助COMSOL软件的模拟分析，我们发现等离激元效应能显著提升MoS2的光吸收能力，使其光谱吸收范围扩展至红外区域。最终，我们将此材料制成了电学器件，并在可见光条件下测得该器件的光响应度高达1000 A/W。

关键词：光电探测器；二硫化钼；等离激元；COMSOL

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