Synthesis of CdZnTe Quantum Dots in the Aqueous Phase by Microwave Irradiation
- Authors
- Kim, Dohyoung; Kim, Jongsung
- Issue Date
- Aug-2016
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Microwave Irradiation (MW); Ternary Quantum Dots; Aqueous Synthesis
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.16, no.8, pp.8411 - 8414
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 16
- Number
- 8
- Start Page
- 8411
- End Page
- 8414
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/8058
- DOI
- 10.1166/jnn.2016.12518
- ISSN
- 1533-4880
- Abstract
- CdZnTe quantum dots were synthesized in the aqueous phase by microwave irradiation using 3-mercaptopropionic acid (MPA) as a stabilizer. Zn(NO3)(2), Cd(NO3)(2), and NaHTe were used as Cd, Zn, and Te precursors, respectively. The preparation of CdZnTe quantum dots was confirmed by energy dispersive X-ray spectroscopy and X-ray diffraction. The effects of pH, Zn/Cd molar ratio, and reaction time on the optical properties of the quantum dots were investigated. A strong fluorescence emission peak was observed from the quantum dots prepared using weak acidic conditions and a reaction time of 24 h. As the Zn/Cd molar ratio increased, the fluorescence intensity increased, and with increasing reaction time, both the photoluminescence and absorbance spectra of the quantum dots showed a red shift.
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