Role of Defects and Growth Directions in the Formation of Periodically Twinned and Kinked Unseeded Germanium Nanowires

被引：31

作者：

Geaney, Hugh ^{[1
,2
]}

Dickinson, Calum ^{[1
,2
]}

Weng, Weihao ^{[3
]}

Kiely, Christopher J. ^{[3
]}

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

Gunning, Robert D. ^{[1
,2
,4
]}

Ryan, Kevin M. ^{[1
,2
,4
]}

机构：

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

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

[3] Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA

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

来源：

CRYSTAL GROWTH & DESIGN | 2011年 / 11卷 / 07期

基金：

爱尔兰科学基金会;

关键词：

SILICON; ORIENTATION; SI;

D O I：

10.1021/cg200510y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Here we show the impact of preferred growth directions and defects in the formation of complex Ge nanowire (NW) structures grown by a simple organic medium based synthesis. Various types of NWs are examined including: straight defect free NWs; periodically bent NWs with precise angles between the NW segments; NWs with mutually exclusive lateral or longitudinal faults; and more complex "wormlike" structures. We show that choice of solvent and reaction temperature can be used to tune the morphology of the NWs formed. The various types of NWs were probed in depth using transmission electron microscopy (TEM), scanning electronic microscopy (SEM), selected area electron diffraction (SAED), and dark field TEM (DFTEM).

引用

页码：3266 / 3272

页数：7

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