Surface-migration driving uniform amorphous shell on crystalline nanowire: the case of SiC/SiOx core-shell nanowires

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	Surface-migration driving uniform amorphous shell on crystalline nanowire: the case of SiC/SiOx core-shell nanowires
	Cai, ZL ; Wang, G ; Song, B ; Wu, R ; Li, J ; Jian, JK
刊名	CRYSTENGCOMM
	2013
卷号	15 期号:25 页码:5082
ISSN号	1466-8033
通讯作者	Cai, ZL (reprint author), Xinjiang Univ, Dept Phys, Urumqi 830046, Xinjiang, Peoples R China.
中文摘要	Single-crystal SiC nanowires with controlled surface amorphous silicon oxide (SiOx) layers, including bare SiC nanowires, chain-like and cable-like SiC/SiOx nanowires, have been synthesized by a catalyst-assisted chemical vapor reaction approach, and the temperature-dependent morphology evolution of the surface amorphous layers is investigated in detail. Morphological, compositional and structural characterizations indicate that as-synthesized SiC nanowires consist of cubic phase single crystal cores with [111] growth direction and amorphous SiOx shell with varied morphology that can be tuned by temperature. The growth of the SiC nanowires is governed by the vapor-liquid-solid mechanism while the variation of surface SiOx amorphous layers is thought to be controlled by a surface migration process that is mainly dependent on temperature. The results would be helpful to achieve rational modulation of amorphous surface layers on semiconductor nanowires.
资助信息	National High Technology Research and Development Program [2011AA03A102]; National Scientific Foundation of China [51172193, 11164026, 51072222, 51272276]; Key Project of Chinese Ministry of Education [212191]
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57534]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Cai, ZL,Wang, G,Song, B,et al. Surface-migration driving uniform amorphous shell on crystalline nanowire: the case of SiC/SiOx core-shell nanowires[J]. CRYSTENGCOMM,2013,15(25):5082.
APA	Cai, ZL,Wang, G,Song, B,Wu, R,Li, J,&Jian, JK.(2013).Surface-migration driving uniform amorphous shell on crystalline nanowire: the case of SiC/SiOx core-shell nanowires.CRYSTENGCOMM,15(25),5082.
MLA	Cai, ZL,et al."Surface-migration driving uniform amorphous shell on crystalline nanowire: the case of SiC/SiOx core-shell nanowires".CRYSTENGCOMM 15.25(2013):5082.