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单层 Tungsten Disulfide 的高性能平面电场发射光探测器,带有微型

Yan Tian¹, Xiangjun Zeng¹, Yang Xing¹

¹State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275, P. R. China.

Small (Weinheim an der Bergstrasse, Germany)

|August 24, 2023

概括

单层二硫化物 (ML WS) 微可以创建先进的光电探测器. 这些设备提供高光响应性和快速切换速度,克服了2D材料式传感器之前的局限性.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
光电学是指光电子产品.

背景情况:

单层二硫化物 (ML WS₂) 具有适用于光敏感应用的理想特性,包括小带隙和高载体流动性.
平面场辐射 (FE) 类型的光电探测器具有快速切换速度和低功耗的潜力.

研究的目的:

为了制造和表征ML WS₂微型片用于平面FE型光探测器.
调查这些新型设备的光响应性能和潜力.

主要方法:

使用电子束光刻 (EBL) 制造ML WS₂微刻板.
构建和优化平面FE型光探测器使用制造的微型.
在绿光照射下测量电流密度和光响应性.

主要成果:

优化的ML WS₂微尖设备实现了最大电流密度为52 A cm^{-2 (@300 V μm^-1).}
最大的光反应率达到了6.8 × 10⁵ A W^-1,超过了许多其他过渡金属二甲基化物 (TMDC) 探测器的性能.
这些设备成功地解决了高光响应度和快速切换速度之间的权衡问题.

结论:

在平面FE型光探测器中,ML WS₂微刻板非常有效,表现出优越的光电子性能.
独特的设备结构和材料特性有助于优异的光响应,包括高载体流动性和量子产量.
这项研究提供了对基于二维材料的平面FE光探测器的制造技术和光敏机制的见解.

关键词:

微型小贴士 (microtips) 是一种微型小贴士.一个单层的tungsten二硫化物.平面场排放的平面场排放.超高光响应度的超高光响应度可见光探测器可见光探测器

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