Synthesis and optical properties of type IICdTe/CdS core/shell quantum dots in aqueous solution via successive ion layer adsorption and reaction

	Synthesis and optical properties of type IICdTe/CdS core/shell quantum dots in aqueous solution via successive ion layer adsorption and reaction
其他题名	论文其他题名
	Zeng Q. H.; Kong X. G.; Sun Y. J.; Zhang Y. L.; Tu L. P.; Zhao J. L.; Zhang H.
	2008
发表期刊	Journal of Physical Chemistry C
ISSN	1932-7447
卷号	112 期号:23 页码:8587-8593
摘要	3-Mercaptopropionic acid stabilized CdTe/CdS core/shell quantum dots (QDs) were prepared in an aqueous solution following the synthetic route of successive ion layer adsorption and reaction. The photoluminescence quantum yield of the CdTe QDs could reach 40%, from 8% of the bare core, via the control of the shell thickness. The CdTe/CdS QDs exhibited also a significant red shift of emission and excitation peaks when the shell layer grew. The experiments revealed that the CdTe/CdS QDs evolved from type I to type II core/shell structures with the increase of the shell thickness, and the evolution process is affected by the core size, shell thickness, surface quality of the core and shell, as unraveled by steady-state and time-resolved spectroscopy. The lack of photoluminescence lifetime lengthening was ascribed to the surface influence of the shell.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26514
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zeng Q. H.,Kong X. G.,Sun Y. J.,et al. Synthesis and optical properties of type IICdTe/CdS core/shell quantum dots in aqueous solution via successive ion layer adsorption and reaction[J]. Journal of Physical Chemistry C,2008,112(23):8587-8593.
APA	Zeng Q. H..,Kong X. G..,Sun Y. J..,Zhang Y. L..,Tu L. P..,...&Zhang H..(2008).Synthesis and optical properties of type IICdTe/CdS core/shell quantum dots in aqueous solution via successive ion layer adsorption and reaction.Journal of Physical Chemistry C,112(23),8587-8593.
MLA	Zeng Q. H.,et al."Synthesis and optical properties of type IICdTe/CdS core/shell quantum dots in aqueous solution via successive ion layer adsorption and reaction".Journal of Physical Chemistry C 112.23(2008):8587-8593.

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