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Facile Synthesis of ZnS−CuInS2-Alloyed Nanocrystals for a Color-Tunable Fluorchrome and Photocatalyst
Abstract
High-quality ZnS-CuInS(2) (ZCIS) alloy nanocrystals have been synthesized via reaction between the acetate salts of the corresponding metals and elemental sulfur in the presence of dodecanethiol in octadecene media at 230 °C. The PL emission wavelength can be tuned conveniently via variation of the stoichiometric ratio of their components. The influence of various experimental variables, including Zn/CuIn ratio, amount of sulfur and dodecanethiol, and reaction temperature, on the optical properties and composition of the obtained ZCIS NCs have been systematically investigated. The plain ZCIS NCs did show PL emission but with quite low PL quantum yield (typically below 3%). In order to improve the PL emission efficiency, the ZnS shell was subsequently overcoated around the ZCIS core NCs. With ZnS shell growth, the PL emission wavelength of the resulting ZCIS/ZnS NCs can cover from 518 to 810 nm with the maximum PL quantum efficiency up to 56%. Furthermore, the obtained ZCIS/ZnS NCs show promising photocatalytic activity in the degradation of rhodamine B.
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Cites
Chemistry and Properties of Nanocrystals of Different Shapes
Burda, C., Chen, X., Narayanan, R., & El-Sayed, M. A. (2005) · Chemical Reviews · doi:10.1021/cr030063a · Cited by 7,230
Dabbousi, B. O., Rodriguez-Viejo, J., Mikulec, F. V., Heine, J. R., Mattoussi, H., Ober, R., Jensen, K. F., & Bawendi, M. G. (1997) · The Journal of Physical Chemistry B · doi:10.1021/jp971091y · Cited by 4,229
Cited by
High-Efficiency “Green” Quantum Dot Solar Cells
Pan, Z., Mora-Seró, I., Shen, Q., Zhang, H., Li, Y., Zhao, K., Wang, J., Zhong, X., & Bisquert, J. (2014) · Journal of the American Chemical Society · doi:10.1021/ja504310w · Cited by 608
Self-citationMultinary I-III-VI2 and I2-II-IV-VI4 Semiconductor Nanostructures for Photocatalytic Applications
Regulacio, M. D., & Han, M.-Y. (2016) · Accounts of Chemical Research · doi:10.1021/acs.accounts.5b00535 · Cited by 365
Metadata
- Authors
- Zhang, W., & Zhong, X.
- Venue
- Inorganic Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-04-01
- Volume
- 50
- Issue
- 9
- Pages
- 4065-4072
- ISSN
- 0020-1669 (ISSN-L)
- 1520-510X
- OpenAlex
- W2329270431
- Cited by
- 250
- References
- 2
- FWCI
- 13.17
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhang, W., & Zhong, X. (2011). Facile Synthesis of ZnS−CuInS2-Alloyed Nanocrystals for a Color-Tunable Fluorchrome and Photocatalyst. Inorganic Chemistry. https://doi.org/10.1021/ic102559e
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