Journal
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
Volume 32, Issue 7, Pages 2316-2318Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.5012/bkcs.2011.32.7.2316
Keywords
Cadmium selenium; Nanocrystalline materials; Selenium dioxide; Luminescence
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Funding
- national natural science foundation [61066006]
- scientific research foundation of Guangxi University [XBZ110359]
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A novel technology has been developed for the synthesis of thioglycolic acid (TGA)-capped CdSe quantum dots (QDs) in aqueous medium. The reaction was carried out in air atmosphere with one-pot by using SeO2 to replace Se or Na2Se. The technological parameters including refluxing time, pH values and molar ratios of selenium to cadmium had significant influence on the luminescence properties of CdSe QDs. Furthermore, the obtained QDs were characterized by fluorescent spectroscopy, X-ray powder diffraction (XRD) and transmission electron microscopy (TEM), respectively. The results demonstrated that the CdSe QDs were of zinc-blended crystal structure in a sphere-like shape.
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