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Facile synthesis of ZnS quantum dots at room temperature for ultra-violet photodetector applications

Rujie Li, Libin Tang, Qing Zhao, Vincent Teng Orcid Logo, Shu Ping Lau

Chemical Physics Letters, Volume: 742, Start page: 137127

Swansea University Author: Vincent Teng Orcid Logo

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DOI (Published version): 10.1016/j.cplett.2020.137127

Abstract

Zinc sulfide (ZnS) quantum dots (QDs) were synthesized using a facile, low-cost and environmentally friendly method at room temperature and ambient pressure. The structural, optical and electrical properties of the as-prepared ZnS QDs were investigated. The monodispersed crystalline ZnS QDs with an...

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Published in: Chemical Physics Letters
ISSN: 0009-2614 1873-4448
Published: Elsevier BV 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa53313
Abstract: Zinc sulfide (ZnS) quantum dots (QDs) were synthesized using a facile, low-cost and environmentally friendly method at room temperature and ambient pressure. The structural, optical and electrical properties of the as-prepared ZnS QDs were investigated. The monodispersed crystalline ZnS QDs with an average size of 3.8 nm has been prepared, an absorption peak at 292 nm in the ultra-violet (UV) range was observed. The maximum responsivity (R) and detectivity (D*) of the ZnS QDs based photodetector under 365 nm UV light illumination were 5.8 A W−1 and 1.97×1013 Jones, respectively, which shows important potential application in UV detection.
Keywords: Semiconductor, Quantum dots (QDs), Zinc sulfide (ZnS), Optical property photodetector
College: Faculty of Science and Engineering
Funders: This work was supported by National Natural Science Foundation of China (No. 61106098), Equipment Pre-research Fund under the Equipment Development Department (EDD) of China’s Central Military Commission (CMC) (No. 1422030209), the Innovation Team Program of NORINCO Group (No. 2017CX024), and Yunnan Key Laboratory of Advanced Photoelectric Materials & Devices (2019DG014).
Start Page: 137127

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