Manipulation of the morphology of CdSe nanostructures: The effect of Si

被引：28
|
作者：
Wang, ZY [1 ]
Li, QF [1 ]
Fang, XS [1 ]
Tian, XK [1 ]
Zhang, LD [1 ]
机构：
[1] Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, Grad Sch, Hefei 230031, Peoples R China
来源：
ADVANCED FUNCTIONAL MATERIALS | 2006年 / 16卷 / 05期
关键词：
D O I：
10.1002/adfm.200500646
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The morphological manipulation, structural characterization, and photoluminescence properties of different CdSe nanocrystals are reported. Several different CdSe structures, including nanowires, nanorods, nanoparticles, and tetrapod crystals, have been grown on silicon substrates by means of simple, Si-assisted chemical vapor deposition. By manipulating the growth driving force (i.e., the degree of supersaturation), the morphology of the CdSe nanocrystals can be varied sequentially from nanowires/nanorods to nanoparticles to tetrapod structures. The optical properties of the CdSe nanocrystals are investigated using photoluminescence spectroscopy. Some thermodynamic models are proposed to explain the results.
引用
收藏
页码：661 / 666
页数：6
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