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- W4313532651 abstract "Abstract The sensitive detection of light polarization besides the intensity and wavelength, can provide a new degree of freedom for more and clearer information of imaging targets in night, fog, and smoke environment. However, the conventional filter‐integrated polarimetric photodetectors suffer from the complicated fabrication process and limited spectral range. Herein, broadband and polarization‐sensitive photodetectors are achieved with reconfigurable operation mode, utilizing the linear dichroism and narrow band gap of 2D As 0.4 P 0.6 with in‐plane anisotropic structure. In As 0.4 P 0.6 ‐MoTe 2 heterojunction device, both photo‐gating and photovoltaic modes are operated and switchable, contributing to high responsivity (1590 A W −1 at 405 nm and 14.7 A W −1 at 1550 nm) and ultrafast speed (25 µs) in the wide spectral band (405–1550 nm). Interestingly, an optical reversal is observed on both linear dichroism and polarimetric photocurrent due to the wavelength‐dependent polarization reverse nature of the As 0.4 P 0.6 flakes. The dichroism ratio of photocurrent can be modulated from unity to ≈10 by varying the gate voltage, enabling the reconfigurable detection mode from polarization‐independence to polarization‐susceptibility. This study demonstrates a new prototype device comprising low symmetric van der Waals heterostructure, possessing the gate‐tunability on both photo‐gain and dichroism ratio, toward high performance, reconfigurable, broadband, and polarization‐resolved photodetection and imaging applications." @default.
- W4313532651 created "2023-01-06" @default.
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- W4313532651 date "2023-01-02" @default.
- W4313532651 modified "2023-10-01" @default.
- W4313532651 title "Reconfigurable and Broadband Polarimetric Photodetector" @default.
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- W4313532651 doi "https://doi.org/10.1002/adfm.202210268" @default.
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