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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.
Do Kyung Hwang andJongtae 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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Do Kyung Hwang, 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