基于 WSe₂ 和 MoS₂ 纳米复合材料的高效宽带光电探测器

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-08-12 DOI:10.1109/LPT.2024.3441749

Tulika Bajpai;Saumya Tripathi;Ajay Kumar Dwivedi;R. K. Nagaria;Shweta Tripathi

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引用次数: 0

摘要

这封信报告了一种基于 Al/WSe2:MoS2/ITO 涂层 PET 结构的宽带光电探测器。该器件采用 WSe2：MoS2 纳米复合材料 (NC) 作为活性层。纳米复合薄膜通过旋涂技术沉积在 ITO 涂层 PET 上。铝触点沉积在 WSe2：MoS2 纳米复合材料上沉积了铝触点。所提出的光电探测器具有广泛的光响应，在-1V偏压下，350nm（紫外）、750nm（可见光）和900nm（红外）波长处的最大响应率分别为10.75 A/W、85.45 A/W和146.96 A/W。该纳米复合材料在光电应用方面表现出了良好的特性。WSe2:MoS2 NC 具有宽广的吸收光谱，涵盖紫外（UV）-可见光-近红外（NIR）区域。

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WSe₂ and MoS₂ Nanocomposite-Based Efficient Broadband Photodetector

This letter reports a Al/WSe2:MoS2/ITO coated PET structure based broadband photodetector. The device utilizes WSe2: MoS2 nanocomposite (NC) as an active layer prepared using dispersion method. The nanocomposite film was deposited over ITO coated PET through spin coating technique. The Al contacts were deposited over WSe2: MoS2 nanocomposite by means of thermal evaporation unit. The proposed photodetector exhibits a broad photo response with maximum responsivity

$\text {R}_{\text {S}}$

(A/W) of 10.75 A/W, 85.45 A/W, and 146.96 A/W; at 350nm (UV), 750nm (visible) and 900nm (IR) at -1V bias. The nanocomposite shows promising characteristics for optoelectronic application. WSe2:MoS2 NC shows a wide absorbance spectra, covering ultraviolet (UV)-visible-near infrared (NIR) regions.

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.