基于 Pdse2 可调谐光响应的中红外光谱仪

Q4 Engineering
Jea-Jung Lee, A. Levi, D. Naveh, F. Xia
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引用次数: 0

摘要

中红外(mid-IR)光电探测在生物医学诊断、安防、化学鉴定和自由间距光通信等各种应用中都非常重要。然而,传统的 "光子 "中红外光探测器需要液氮冷却(即 MCT)。此外,获取中红外光谱通常需要复杂而昂贵的傅立叶变换红外光谱仪,这种台式仪器由一米长的干涉仪和 MCT 探测器组成,不适合移动和小型设备应用。在这项研究中,我们展示了在室温下工作的二硒化钯(PdSe2)- 二硫化钼(MoS2)异质结构场效应晶体管(FET)在中红外波段的可调光致发光性。此外,我们还利用可调谐膜腔来调节法布里-佩罗共振,从而调节器件层的吸收光谱。我们使用了带有 CVD 生长石墨烯的坚固聚醚酰亚胺(PEI)膜来对膜结构进行电调谐。下一步,我们将整合基于 PdSe2 的光电探测器和可调谐膜,以提高检测灵敏度和光谱可调谐性,从而实现基于 "学习 "的光谱学。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mid-Infrared Spectrometer Based on Tunable Photoresponses in Pdse2
Mid-infrared (mid-IR) photodetection is important for various applications, including biomedical diagnostics, security, chemical identification, and free-spacing optical communications. However, conventional “photon” mid-IR photodetectors require liquid nitrogen cooling (i.e., MCT). Furthermore, acquiring mid-IR spectra usually involves a complex and expensive Fourier Transform Infrared spectrometer, a tabletop instrument consisting of a meter-long interferometer and MCT detectors, which is not suitable for mobile and compact device applications. In this work, we present tunable photoresponsivity in the mid-IR wavelength in palladium diselenide (PdSe2) – molybdenum disulfide (MoS2) heterostructure field-effect transistors (FETs), operating at room temperature. Furthermore, we applied a tunable membrane cavity to modulate the Fabry–Pérot resonance to modulate the absorption spectrum of the device layer. We used a robust polyetherimide (PEI) membrane with CVD-grown graphene to electrically tune the membrane structure. For the next step, we will integrate the PdSe2-based photodetector and tunable membrane to increase detection sensitivity and spectrum tunability to realize the ‘learning’-based spectroscopy.
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来源期刊
International Journal of High Speed Electronics and Systems
International Journal of High Speed Electronics and Systems Engineering-Electrical and Electronic Engineering
CiteScore
0.60
自引率
0.00%
发文量
22
期刊介绍: Launched in 1990, the International Journal of High Speed Electronics and Systems (IJHSES) has served graduate students and those in R&D, managerial and marketing positions by giving state-of-the-art data, and the latest research trends. Its main charter is to promote engineering education by advancing interdisciplinary science between electronics and systems and to explore high speed technology in photonics and electronics. IJHSES, a quarterly journal, continues to feature a broad coverage of topics relating to high speed or high performance devices, circuits and systems.
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