Novel Self-Powered Photodetector with Binary Photoswitching Based on SnSx/TiO2 Heterojunctions
Source abstract
Abstract
Binary photoresponse characteristics can help realize optical signal processing and logic operations. UV photodetectors (PDs) with SnSx nanoflakes and TiO2 nanorod arrays (NRs) show a novel binary photoswitching behavior (change in current from positive to negative) by manipulating the light wavelength without an external power source, utilizing the interfacial recombination of the photogenerated carriers in the type-I SnSx/TiO2 heterojunctions. The enhanced responsivity (R*), detectivity (D*), and fast photoresponse time for self-powered SnSx/TiO2PDs can be achieved by adjusting the phase ratio of SnS and SnS2 nanoflakes. The binary photoswitching in the self-powered UV PDs can be applied in the encrypted optical signal processing and imaging in some special conditions without external bias.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Memory and Neural Computing · Analytical Chemistry and Sensors · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Institute of Material Physics, Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, and Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin University of Technology, Tianjin 300384, China
School of Science, Tianjin University of Technology, Tianjin 300384, China
School of Science, Tianjin University of Technology and Education, Tianjin 300222, China
Funding
Natural Science Foundation of Tianjin City · National Natural Science Foundation of China · Tianjin Municipal Education Commission
References (52)
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