A Room-Temperature Terahertz Photodetector Imaging with High Stability and Polarization-Sensitive Based on Perovskite/Metasurface.

Autor: Li Y; College of Electronic Information Engineering & Hebei Key Laboratory of Digital Medical Engineering, Hebei University, Baoding, 071000, China.; School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China., Jia Y; College of Electronic Information Engineering & Hebei Key Laboratory of Digital Medical Engineering, Hebei University, Baoding, 071000, China., Yang H; College of Electronic Information Engineering & Hebei Key Laboratory of Digital Medical Engineering, Hebei University, Baoding, 071000, China., Wu Y; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China., Cao Y; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China., Zhang X; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China., Lou C; College of Electronic Information Engineering & Hebei Key Laboratory of Digital Medical Engineering, Hebei University, Baoding, 071000, China., Liu X; College of Electronic Information Engineering & Hebei Key Laboratory of Digital Medical Engineering, Hebei University, Baoding, 071000, China., Huang LB; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China.; National Key Laboratory of Green and Long-Life Road Engineering in Extreme Environment, Shenzhen University, Shenzhen, 518060, China., Yao J; School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin, 300072, China.
Jazyk: angličtina
Zdroj: Advanced science (Weinheim, Baden-Wurttemberg, Germany) [Adv Sci (Weinh)] 2024 Dec 17, pp. e2407634. Date of Electronic Publication: 2024 Dec 17.
DOI: 10.1002/advs.202407634
Abstrakt: Terahertz (THz) polarization detection facilitates the capture of multidimensional data, including intensity, phase, and polarization state, with broad applicability in high-resolution imaging, communication, and remote sensing. However, conventional semiconductor materials are limited by energy band limitations, rendering them unsuitable for THz detection. Overcoming this challenge, the realization of high-stability, room-temperature polarization-sensitive THz photodetectors (PDs) leveraging the thermoelectric effect of Cs 0.05 (FA 0.85 MA 0.15 ) 0.95 Pb(I 0.85 Br 0.15 ) 3 (CsFAMA)/metasurfaces is presented. Two different structures of (T-shaped and I-shaped) THz PDs are constructed. The incorporation of perovskite/metasurfaces forms enhanced local field thermoelectric effect and polarization response. Owning to THz surface plasmon polariton (SPP) resonance effect and more boundary effect, the I-shaped PDs exhibit superior performance, achieving a response of up to 94 V/W, with a response time of 138 µs, a low noise-equivalent power of 5.03 pW/Hz 1/2 and an anisotropy ratio of 1.38 under 0.1THz laser irradiation. Furthermore, the PD's stability is verified with the anisotropy ratio decreased by only 2% and polarization imaging results after 240 days of storage in air condition. This research introduces a method for achieving high-performance, stable THz polarization detection technology, with significant potential for advancements in materials science, communication technology, and medical imaging.
(© 2024 The Author(s). Advanced Science published by Wiley‐VCH GmbH.)
Databáze: MEDLINE
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