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Jeong, Wonwoo, Hui, Kwan San 
ORCID: https://orcid.org/0000-0001-7089-7587, Hui, Kwun Nam, Cho, Young Rae and Cho, Kyung Mox
(2017)
Tunable emission properties of CdSe/CdS quantum dots by Ce doping.
Journal of Materials Science: Materials in Electronics, 28 (22).
17331–17337.
ISSN 0957-4522
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Abstract
A facile one-step hydrothermal synthesis to prepare cerium (Ce3+) ion doped CdSe/CdS core/shell quantum dots (QDs) is introduced. The effect of Ce3+ ion doping on structural and optical properties of the CdSe/CdS core/shell QDs is comprehensively investigated. With increasing Ce doping concentration, a linear increase in the lattice parameter is observed, suggesting the successful coupling of Ce3+ ions to the CdSe/CdS QDs. X-ray photoelectron spectroscopy reveals strong peaks of the Ce3+ state, indicating that Ce is initially present mainly in the Ce3+ ion state. In addition, red-shift over the range 538–569 nm is observed in the photoluminescence (PL) spectra of Ce3+ ion doped CdSe/CdS QDs. Results clearly indicates that the PL peak positions of the CdSe/CdS QDs could be controlled by the Ce content. This study highlights a new approach to tune the emission of the QDs.
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Engineering |
| UEA Research Groups: | Faculty of Science > Research Groups > Energy Materials Laboratory |
| Related URLs: | |
| Depositing User: | Pure Connector |
| Date Deposited: | 23 Sep 2017 05:08 |
| Last Modified: | 13 Apr 2023 13:53 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/64953 |
| DOI: | 10.1007/s10854-017-7665-0 |
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