Formation of Wurtzite InP Nanowires Explained by Liquid-Ordering

被引：22

作者：

Algra, Rienk E. ^{[1
,2
,3
]}

Vonk, Vedran ^{[1
]}

Wermeille, Didier ^{[4
]}

Szweryn, Wiesiek J. ^{[1
]}

Verheijen, Marcel A. ^{[3
]}

van Enckevort, Willem J. P. ^{[1
]}

Bode, Arno A. C. ^{[1
]}

Noorduin, Wim L. ^{[1
]}

Tancini, Erik ^{[4
]}

de Jong, Aryan E. F. ^{[1
]}

Bakkers, Erik P. A. M. ^{[3
,5
]}

Vlieg, Elias ^{[1
]}

机构：

[1] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 AJ Nijmegen, Netherlands

[2] M2i, NL-2628 CD Delft, Netherlands

[3] Philips Res Labs Eindhoven, NL-5656 AE Eindhoven, Netherlands

[4] European Synchrotron Radiat Facil, F-38043 Grenoble 9, France

[5] Eindhoven Univ Technol, Dept Appl Phys, NL-5600 MB Eindhoven, Netherlands

来源：

NANO LETTERS | 2011年 / 11卷 / 01期

关键词：

Nanowires; X-ray diffraction; solid-liquid interface; liquid ordering; SURFACE DIFFRACTION BEAMLINE; INTERFACE; MORPHOLOGY; CRYSTALS; INDIUM;

D O I：

10.1021/nl1023996

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report an in situ surface X-ray diffraction study of liquid AuIn metal alloys in contact with zinc-blende InP (111)(B) substrates at elevated temperatures. We observe strong layering of the liquid metal alloy in the first three atomic layers in contact with the substrate. The first atomic layer of the alloy has a higher indium concentration than in bulk. In addition, in this first layer we find evidence for in-plane ordering at hollow sites, which could sterically hinder nucleation of zinc-blende RIP. This can explain the typical formation of the wurtzite crystal structure in InP nanowires grown from AuIn metal particles.

引用

页码：44 / 48

页数：5

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