Huang, X.; Bai, Q.; Guo, Y.; Liang, Q.; Liu, T.; Liao, W.; Jin, A.; Quan, B.; Yang, H.; Liu, B.; Gu, C. Reconfigurable Polarimetric Photodetector Based on MoS2/PdSe2 Heterostructure with Charge-Trap Gate Stack. Preprints2024, 2024102549. https://doi.org/10.20944/preprints202410.2549.v1
APA Style
Huang, X., Bai, Q., Guo, Y., Liang, Q., Liu, T., Liao, W., Jin, A., Quan, B., Yang, H., Liu, B., & Gu, C. (2024). Reconfigurable Polarimetric Photodetector Based on MoS2/PdSe2 Heterostructure with Charge-Trap Gate Stack. Preprints. https://doi.org/10.20944/preprints202410.2549.v1
Chicago/Turabian Style
Huang, X., Baoli Liu and Changzhi Gu. 2024 "Reconfigurable Polarimetric Photodetector Based on MoS2/PdSe2 Heterostructure with Charge-Trap Gate Stack" Preprints. https://doi.org/10.20944/preprints202410.2549.v1
Abstract
Besides the intensity and wavelength, the ability to analyze the optical polarization of the detected light can provide a new degree of freedom for numerous applications, such as object recognition, biomedical applications, environmental monitoring and remote sensing imaging. However, the conventional filter-integrated polarimetric sensing systems require complex optical components and complicated fabrication process, severely limiting its on-chip miniaturization and functionalities. Herein, the reconfigurable polarimetric photodetection with photovoltaic mode are developed based on a few-layer MoS2/PdSe2 heterostructure channel and a charge-trap structure composed of Al2O3/HfO2/Al2O3 (AHA) stacked dielectric. Because of the remarkable charge-trapping ability of carriers in AHA stack, the MoS2/PdSe2 channel exhibits a high program/erase current ratio of 105 and memory window exceeding 20 V. Moreover, photovoltaic mode of MoS2/PdSe2 Schottky diode can be operated and manipulable, resulting into high and distinct responsivities in the visible broadband. Interestingly, the linear polarization of device can be modulated under program/erase states, enabling the reconfigurable capability of linearly polarized photodetection. This study demonstrates a new prototype heterostructure-based photodetector with capability of both tunable responsivity and linear polarization, demonstrating great potential application toward reconfigurable photosensing and polarization-resolved imaging applications.
Copyright:
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