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Issue 14, 2016
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High-performance flexible photodetectors based on single-crystalline Sb2Se3 nanowires

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Abstract

Antimony selenide (Sb2Se3) has many potential applications in photoelectric devices, thermoelectric cooling devices and electrochemical devices etc. It also has many special properties due to its layered structure. A simple hydrothermal method was used to synthesize Sb2Se3 nanowires of high crystalline quality. (Sb4Se6)n layers are parallel to the growth direction of the Sb2Se3 nanowire. A single Sb2Se3 nanowire demonstrated a remarkable response to 635 nm light at 10 V with the responsivity and external quantum efficiency of 360 A W−1 and 7.0 × 104%, respectively. The rise/fall time was 0.4/1.3 s. Flexible photodetectors were fabricated by dispersing a large number of Sb2Se3 nanowires onto the Au interdigitated electrodes on PET substrates, which showed a fast response speed with the rise/fall time as low as 13/20 ms and excellent flexibility. The high-performance of the photodetectors may be partially attributed to the layered structure. Generally, high-yield Sb2Se3 nanowires synthesized by the hydrothermal method are promising candidates for high-performance flexible photodetectors.

Graphical abstract: High-performance flexible photodetectors based on single-crystalline Sb2Se3 nanowires

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Supplementary files

Article information


Submitted
08 Nov 2015
Accepted
14 Jan 2016
First published
18 Jan 2016

RSC Adv., 2016,6, 11501-11506
Article type
Paper
Author version available

High-performance flexible photodetectors based on single-crystalline Sb2Se3 nanowires

Y. Liang, Y. Wang, J. Wang, S. Wu, D. Jiang and J. Lian, RSC Adv., 2016, 6, 11501
DOI: 10.1039/C5RA23542A

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