High-performance perfect absorption infrared photodetectors with garphene-based SiC grating microstructures

IF 2.5 3区 物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-06-26 DOI:10.1016/j.photonics.2024.101292
Yongjiang Liu , Zheng-Da Hu , Jingjing Wu , Jicheng Wang , Feng Zhang
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Abstract

Due to its diverse crystal configurations with varying bandgaps, Silicon Carbide (SiC) has been widely utilized by numerous researchers in the preparation of photodetectors. In this paper, we propose high performance tunable photodetector with graphene-based SiC grating structure. The photodetector can achieve perfect absorption and the responsivity of 10.61 A/W at 11.7 μm wavelength. The tunable broadband photodetection from 11.4 μm to 12 μm can be obtained by adjust graphene’s Fermi level. Compared with existing graphene-based photodetector with or without SiC structures, our structure has more flexible detection and higher performance. In addition, we explain the standing wave phenomenon observed during the tuning of the photodetector structure. This provides a new direction for the development of high-quality infrared photodetectors.

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采用基于石墨烯的碳化硅光栅微结构的高性能完美吸收红外光探测器
由于碳化硅(SiC)具有不同带隙的晶体结构,因此被众多研究人员广泛用于制备光电探测器。本文提出了基于石墨烯的碳化硅光栅结构的高性能可调谐光电探测器。该光电探测器可实现完美吸收,在 11.7 μm 波长下的响应率为 10.61 A/W。通过调节石墨烯的费米级,可以获得从 11.4 μm 到 12 μm 的可调宽带光电探测。与现有的带或不带碳化硅结构的石墨烯基光电探测器相比,我们的结构具有更灵活的探测能力和更高的性能。此外,我们还解释了在光电探测器结构调整过程中观察到的驻波现象。这为开发高质量的红外光探测器提供了新的方向。
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来源期刊
CiteScore
5.00
自引率
3.70%
发文量
77
审稿时长
62 days
期刊介绍: This journal establishes a dedicated channel for physicists, material scientists, chemists, engineers and computer scientists who are interested in photonics and nanostructures, and especially in research related to photonic crystals, photonic band gaps and metamaterials. The Journal sheds light on the latest developments in this growing field of science that will see the emergence of faster telecommunications and ultimately computers that use light instead of electrons to connect components.
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