Manipulation of the Morphology of CdSe Nanostructures: The Effect of Si
Manipulation of the Morphology of CdSe Nanostructures: The Effect of Si
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DOI：
10.1002/adfm.200500646
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发表时间：
2006-03
影响因子：
19
通讯作者：
Z. Y. Wang-Z. Y.-Wang-2124804645;Q. Lu;X. Fang;X. Tian;L. D. Zhang-L. D.-Zhang-2160084959
中科院分区：
文献类型：
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作者：
Z. Y. Wang-Z. Y.-Wang-2124804645;Q. Lu;X. Fang;X. Tian;L. D. Zhang-L. D.-Zhang-2160084959
不同的CdSe纳米晶体的形态操纵，结构表征，和光致发光性能的报告。几种不同的CdSe结构，包括纳米线、纳米棒、纳米颗粒和四脚晶体，已经通过简单的Si辅助化学气相沉积在硅衬底上生长。通过操纵生长驱动力（即，过饱和度），CdSe纳米晶体的形态可以从纳米线/纳米棒到纳米颗粒再到四脚结构依次变化。利用光致发光光谱研究了CdSe纳米晶的光学性质。提出了一些热力学模型来解释这一结果。
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.