A Submicrosecond-Response Ultraviolet-Visible-Near-Infrared Broadband Photodetector Based on 2D Tellurosilicate InSiTe<sub>3</sub>.
basic_science · Level V
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- Record sourced from PubMed, PMID 35499232.
- Also identified by DOI 10.1021/acsnano.1c11628.
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Abstract
2D material (2DM) based photodetectors with broadband photoresponse are of great value for a vast number of applications such as multiwavelength photodetection, imaging, and night vision. However, compared with traditional photodetectors based on bulk material, the relatively slow speed performance of 2DM based photodetectors hinders their practical applications. Herein, a submicrosecond-response photodetector based on ternary telluride InSiTe<sub>3</sub> with trigonal symmetry and layered structure was demonstrated in this study. The InSiTe<sub>3</sub> based photodetectors exhibit an ultrafast photoresponse (545-576 ns) and broadband detection capabilities from the ultraviolet (UV) to the near-infrared (NIR) optical communication region (365-1310 nm). Besides, the photodetector presents an outstanding reversible and stable photoresponse in which the response performance remains consistent within 200 000 cycles of switch operation. These significant findings suggest that InSiTe<sub>3</sub> can be a promising candidate for constructing fast response broadband 2DM based optoelectronic devices.