2D heterostructures and optoelectronic devices for polarized photodetection

Do Kyung Hwang; Jongtae Ahn

doi:10.1117/12.2690396

13 March 2024 2D heterostructures and optoelectronic devices for polarized photodetection

Do Kyung Hwang, Jongtae Ahn

Proceedings Volume PC12888, 2D Photonic Materials and Devices VII; PC128880I (2024) https://doi.org/10.1117/12.2690396
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We demonstrate MoTe2/ReS2 and WSe2/ReSe2 van der Waals heterostructures for linear polarization photodetection. The MoTe2/ReS2 photodiode shows excellent electrical performance with ideality factor or 1.3 and high ON/OFF ratio of 10^4 and exhibit broad spectral photo response up to 1310 nm illumination. The WSe2/ReSe2 device also exhibits excellent performance: an ideality factor of 1.67, a broad spectral photoresponse of 405–980 nm with significant photovoltaic effect, remarkable linearity with a linear dynamic range wider than 100 dB, and rapid photoswitching behavior with cutoff frequency up to 100 kHz. These two type of heterostructure shows clear linear polarization sensitive photodetection and we finally demonstration NIR digital incoherent holography.

Conference Presentation

Citation Download Citation

Do Kyung Hwang and Jongtae Ahn "2D heterostructures and optoelectronic devices for polarized photodetection", Proc. SPIE PC12888, 2D Photonic Materials and Devices VII, PC128880I (13 March 2024); https://doi.org/10.1117/12.2690396

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