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Robust SiC Nanoarray Blue-Light Photodetector

Abstract

Silicon carbide (SiC) is recognized as one of the most important candidate of third generation semiconductors with totally superior physical/chemical properties and exciting applications in opto/electronic devices. In the present work, we reported the exploration of high-performance blue-light photodetector on both rigid and flexible substrates by using SiC nanoarrays, which are aligned by the dielectrophoresis. The rise and decay times of the photodetector assembled on rigid (i.e., SiO2/Si) substrate are ~0.39 and 0.56 s, respectively, with an external quantum efficiency of 3394 %, which suggested that the SiC nanoarray photodetector were highly sensitive, fast responsive and excellent reproducible to the light irradiation with a wavelength of 445 nm. Meanwhile, 73% of the maximum photocurrent response can be maintained after 6 months. Furthermore, the as-constructed flexible photodetector based on polyethylene terepthalate (PET) substrate could be highly stable against the repeated bending, demonstrating that the as-constructed SiC photodetector was robust with high flexibility and electrical stability.

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Article information


Submitted
01 Feb 2020
Accepted
20 Mar 2020
First published
23 Mar 2020

J. Mater. Chem. C, 2020, Accepted Manuscript
Article type
Paper

Robust SiC Nanoarray Blue-Light Photodetector

J. Zheng, H. Chong, L. Wang, S. Chen, W. Yang, G. Wei and F. Gao, J. Mater. Chem. C, 2020, Accepted Manuscript , DOI: 10.1039/D0TC00552E

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