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Studies on the synthesis and growth mechanism of single crystal ZnO nanowires
其他题名单晶ZnO纳米线的合成和生长机理研究
Li, ZM; Xu, FQ; Sun, XY; Zhang, WH; Xu, XD; Xu, PS; Wu, ZY; Wu ZY(吴自玉)
2005
发表期刊CHINESE JOURNAL OF CHEMICAL PHYSICS
卷号18期号:1页码:#REF!
通讯作者Xu, FQ (reprint author), Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China.
文章类型Article
摘要ZnO nanowires with the diameter of 50 similar to 100 nm and length up to several tens of microns were fabricated on Au coated Si or sapphire substrates by the reaction between ZnO and graphite powder through the chemical vapor transport (CVT) method. The FESEM, HRTEM and SAED results confirmed that the individual nanowire has the nature of single crystal and the [0001] crystal orientation is observed from a ZnO nanowire. New experimental evidences have been provided for the initial and final growth states to support the VLS mechanism for nanowire growth, and a growth mechanism of binary oxide nanowire proposed in the course of studying the growth process of ZnO nanowires systematically. It is considered that the Zn vapor formed by carbothermal reduction is transported to, and reacts with, the Au cluster catalysts on substrates to form Au-Zn alloy droplets. As the droplets become supersaturated by Zn vapor, the extra Zn segregates backward and reacts with the trace of oxygen in the reactor or the oxygen sources produced during the carbothermal reaction to form crystalline ZnO nanowires. The spontaneous growth of a large quantity of nanowires reduces the concentration of Zn in the alloy droplets, which may lead to the termination of nanowire growth.
关键词ZnO nanowire growth mechanism oxide nanostructure
学科领域Physics
收录类别SCI
WOS类目Physics, Atomic, Molecular & Chemical
WOS记录号WOS:000227637900022
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226271
专题多学科研究中心
推荐引用方式
GB/T 7714
Li, ZM,Xu, FQ,Sun, XY,et al. Studies on the synthesis and growth mechanism of single crystal ZnO nanowires[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2005,18(1):#REF!.
APA Li, ZM.,Xu, FQ.,Sun, XY.,Zhang, WH.,Xu, XD.,...&吴自玉.(2005).Studies on the synthesis and growth mechanism of single crystal ZnO nanowires.CHINESE JOURNAL OF CHEMICAL PHYSICS,18(1),#REF!.
MLA Li, ZM,et al."Studies on the synthesis and growth mechanism of single crystal ZnO nanowires".CHINESE JOURNAL OF CHEMICAL PHYSICS 18.1(2005):#REF!.
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