High Density Germanium Nanowire Growth Directly from Copper Foil by Self-Induced Solid Seeding

被引：55

作者：

Geaney, Hugh ^{[1
,2
]}

Dickinson, Calum ^{[1
,2
]}

Barrett, Christopher A. ^{[1
,2
]}

Ryan, Kevin M. ^{[1
,2
,3
]}

机构：

[1] Univ Limerick, Mat & Surface Sci Inst, Limerick, Ireland

[2] Univ Limerick, Dept Chem & Environm Sci, Limerick, Ireland

[3] Univ Limerick, SFI Strateg Res Cluster Solar Energy Res, Limerick, Ireland

来源：

CHEMISTRY OF MATERIALS | 2011年 / 23卷 / 21期

基金：

爱尔兰科学基金会;

关键词：

germanium; nanowire; solid phase seeding; CHEMICAL-VAPOR-DEPOSITION; SILICON NANOWIRES; GE NANOWIRES; GOLD; ORIENTATION; STABILITY;

D O I：

10.1021/cm202276m

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：

Herein, we describe the growth of highly dense germanium nanowire mats directly on copper foil by a self-induced, solid seeded protocol. The existence of Cu3Ge tips on each of the nanowires indicates that growth proceeds via a solid catalyzed route, dependent on the in situ formation of the germanide intermediate. The nanowires show a tight diameter distribution and typically < 110 > growth directions resulting from similarities in the d spacings between the nanowire and the catalyst seed. The nanowires and substrates were characterized using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), scanning transmission electron microscopy (STEM), energy-dispersive X-ray spectroscopy (EDX), and electron backscatter diffraction (EBSD).

引用

页码：4838 / 4843

页数：6

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