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Facile synthesis of ZnS quantum dots at room temperature for ultra-violet photodetector applications
Chemical Physics Letters, Volume: 742, Start page: 137127
Swansea University Author:
Vincent Teng
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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...
Published in: | Chemical Physics Letters |
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ISSN: | 0009-2614 1873-4448 |
Published: |
Elsevier BV
2020
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Online Access: |
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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. |
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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 |