Nucleation and growth of boron nanowires on diamond particles

被引：7
作者：
Bai, H. [1 ]
Zou, H. H. [1 ]
Chen, G. X. [1 ]
Yu, J. H. [1 ]
Nishimura, K. [1 ,2 ]
Dai, W. [1 ]
Jiang, N. [1 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine New Mat & Related Technol, Ningbo 315201, Zhejiang, Peoples R China
[2] Kogakuin Univ, Hachioji, Tokyo 1920015, Japan
来源：
APPLIED SURFACE SCIENCE | 2014年 / 313卷
基金：
中国博士后科学基金;
关键词：
Diamond; Boron nanowires; Growth mechanism; FIELD-EMISSION; ARRAYS; MECHANISM;
D O I：
10.1016/j.apsusc.2014.05.164
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Crystalline boron nanowires (BNWs) are grown on the entire surface of diamond powders by a solid-solid reaction approach. The as-grown BNWs have diameters in the range of 20-200 nm, lengths of several micrometers. High-resolution transmission electron microscopy (HRTEM) observation indicated the boron nanowires are composed of two structures, the interior of the nanowire is well crystalline in hexagonal structure and the surface of the nanowire is covered by a 5-10 nm thick tetragonal structure layer. Systematic analysis reveals that the conventional VLS (vapor-liquid-solid) growth model is not applicable to explain this kind of BNWs' growth mechanism. Hereby, an extended VLS model is proposed which can perfectly interpret the BNW's growth process on diamond surface and match experiment results very well. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：132 / 137
页数：6
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