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Structure Transition and Luminescence Properties of CdTe/CdS Quantum Dots
其他题名论文其他题名
An L. M.; Zeng Q. H.; Zhao J. L.; Song W. S.; Su W. H.
2009
发表期刊Chemical Journal of Chinese Universities-Chinese
ISSN0251-0790
卷号30期号:9页码:1789-1792
摘要Water-soluble CdTe/CdS core-shell quantum dots (QDs) with the different shell thickness capped with 3-mercaptopropionic acid were synthesized following the synthetic method of successive ion layer adsorption and reaction. UV-Vis absorption spectroscopy, photoluminescence(PL) spectroscopy, transmission electron microscopy(TEM) and time-resolved luminescence were employed to analyze optical characters of QDs. The CdTe/CdS QDs exhibited a significant red shift of emission peak, FWHM increasing and PL lifetime lengthening when the shell layer grew. The experiments revealed that the CdTe/CdS QDs evolve from type- I to type- II core-shell structure with the increase of the shell thickness. The lack of PL lifetime lengthening and quantum yield increasing was ascribed to the surface influence of the shell.
收录类别SCI
语种中文
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/25644
专题中科院长春光机所知识产出
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An L. M.,Zeng Q. H.,Zhao J. L.,et al. Structure Transition and Luminescence Properties of CdTe/CdS Quantum Dots[J]. Chemical Journal of Chinese Universities-Chinese,2009,30(9):1789-1792.
APA An L. M.,Zeng Q. H.,Zhao J. L.,Song W. S.,&Su W. H..(2009).Structure Transition and Luminescence Properties of CdTe/CdS Quantum Dots.Chemical Journal of Chinese Universities-Chinese,30(9),1789-1792.
MLA An L. M.,et al."Structure Transition and Luminescence Properties of CdTe/CdS Quantum Dots".Chemical Journal of Chinese Universities-Chinese 30.9(2009):1789-1792.
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