Self-powered near-infrared detectors that can work without an external power source underpin important applications in versatile fields. Herein, a self-powered near-infrared (NIR) detector with a metal–semiconductor–metal structure was fabricated by mounting a hydrothermal synthesized Te microwire onto Ti electrodes. Under 1550 nm illumination, the detector exhibits a responsivity of 3.47 × 105 V/W and 170 mA/W and a detectivity of 4 × 109 Jones at room temperature. Such competitive performance can be attributed to the built-in electric fields induced by the asymmetric Schottky barrier. Moreover, benefiting from the highly anisotropic structure of the Te microwire, the polarization dichroic ratio of the device under 1550 nm irradiation can reach up to 2.1. This work provided a facile strategy to realize polarization-sensitive self-powered near-infrared (NIR) detection in a wide temperature range.
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Polarization-sensitive self-powered tellurium microwire near-infrared photodetector
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6 March 2023
Research Article|
March 08 2023
Polarization-sensitive self-powered tellurium microwire near-infrared photodetector
Special Collection:
2023 Rising Stars Collection
Zheng-Dong Shui
;
Zheng-Dong Shui
(Data curation, Formal analysis, Investigation, Writing – original draft, Writing – review & editing)
1
School of Materials Science & Engineering, Sichuan University
, Chengdu 610064, China
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Shaoyuan Wang
;
Shaoyuan Wang
(Formal analysis, Investigation, Methodology)
1
School of Materials Science & Engineering, Sichuan University
, Chengdu 610064, China
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Zhihao Yang
;
Zhihao Yang
(Formal analysis, Investigation, Methodology)
1
School of Materials Science & Engineering, Sichuan University
, Chengdu 610064, China
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Dong Wang
;
Dong Wang
(Formal analysis, Investigation, Methodology)
1
School of Materials Science & Engineering, Sichuan University
, Chengdu 610064, China
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Bang-Zhou Tian
;
Bang-Zhou Tian
(Formal analysis, Investigation, Methodology)
1
School of Materials Science & Engineering, Sichuan University
, Chengdu 610064, China
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Siyuan Luo
;
Siyuan Luo
(Investigation, Writing – review & editing)
2
Microsystem and Terahertz Research Center, China Academy of Engineering Physics
, Chengdu 610200, China
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Zegao Wang
;
Zegao Wang
a)
(Conceptualization, Formal analysis, Supervision, Writing – review & editing)
1
School of Materials Science & Engineering, Sichuan University
, Chengdu 610064, China
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Appl. Phys. Lett. 122, 101902 (2023)
Article history
Received:
January 15 2023
Accepted:
February 22 2023
Citation
Zheng-Dong Shui, Shaoyuan Wang, Zhihao Yang, Dong Wang, Bang-Zhou Tian, Siyuan Luo, Zegao Wang, Lei Yang; Polarization-sensitive self-powered tellurium microwire near-infrared photodetector. Appl. Phys. Lett. 6 March 2023; 122 (10): 101902. https://doi.org/10.1063/5.0142575
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