Fabrication of silicon nanowire on freestanding multiwalled carbon nanotubes by chemical vapor deposition

被引：6

作者：

Liu, Teng ^{[1
,2
]}

Liang, Richard ^{[1
,2
]}

Okoli, Okenwa ^{[1
,2
]}

Zhang, Mei ^{[1
,2
]}

机构：

[1] Florida State Univ, High Performance Mat Inst, Tallahassee, FL 32310 USA

[2] FAMU FSU Coll Engn, Dept Ind & Mfg Engn, Tallahassee, FL 32310 USA

来源：

MATERIALS LETTERS | 2015年 / 159卷

关键词：

Carbon nanotube; Silicon nanowire; Chemical vapor deposition; Gold nanoparticles; Nanocomposites; SEMICONDUCTOR NANOWIRES; BUILDING-BLOCKS; BATTERY ANODES; DEVICES; GROWTH; YARNS;

D O I：

10.1016/j.matlet.2015.07.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The multi-walled carbon nanotube-silicon nanowire (MWNT/SiNW) hybrids are important materials to meet the requirements of energy storage devices. We fabricated novel freestanding MWNT/SiNW hybrids by growing SiNWs directly on MWNT network via chemical vapor deposition. Gold (Au) was employed as catalyst and the influence of catalyst on the morphology of hybrids was investigated. The results indicated that tuning the thickness of Au layer could serve as a means to control the structure of MWNT/SiNW hybrids. The formation of SiNWs on the surface of MWNTs mainly depended on Au nanoparticles migrating into larger eutectic Au-Si alloy, and the abundant Si depositing on MWNTs improved the connections among MWNTs and SiNWs mechanically and electrically. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：353 / 356

页数：4

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