In Situ TEM Observation of Crystal Structure Transformation in InAs Nanowires on Atomic Scale

被引：34

作者：

Zhang, Zhi ^{[1
,2
]}

Liu, Nishuang ^{[1
,2
]}

Li, Luying ^{[1
,2
]}

Su, Jun ^{[1
,2
]}

Chen, Ping-Ping ^{[3
]}

Lu, Wei ^{[3
]}

Gao, Yihua ^{[1
,2
]}

Zou, Jin ^{[4
,5
]}

机构：

[1] HUST, CNCD, Sch Phys, Luoyu Rd 1037, Wuhan 430074, Hubei, Peoples R China

[2] HUST, WNLO, Luoyu Rd 1037, Wuhan 430074, Hubei, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Tech Phys, Natl Lab Infrared Phys, 500 Yu Tian Rd, Shanghai 200083, Peoples R China

[4] Univ Queensland, Mat Engn, St Lucia, Qld 4072, Australia

[5] Univ Queensland, Ctr Microscopy & Microanal, St Lucia, Qld 4072, Australia

来源：

NANO LETTERS | 2018年 / 18卷 / 10期

基金：

美国国家科学基金会; 澳大利亚研究理事会;

关键词：

In situ; TEM; nanowire; structure transformation; III-V NANOWIRES; INDIUM-PHOSPHIDE NANOWIRES; MOLECULAR-BEAM EPITAXY; GAAS NANOWIRES; SEMICONDUCTOR NANOWIRES; INGAAS NANOWIRES; GROWTH-MECHANISM; PHASE-CONTROL; ZINC BLENDE; WURTZITE;

D O I：

10.1021/acs.nanolett.8b03231

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In situ transmission electron microscopy investigation of structural transformation in III-V nanowires is essential for providing direct insight into the structural stability of III-V nanowires under elevated temperature. In this study, through in situ heating investigation in a transmission electron microscope, the detailed structural transformation of InAs nanowires from wurtzite structure to zinc-blende structure at the catalyst/nanowire interface is witnessed on the atomic level. Through detailed structural and dynamic analysis, it was found that the nucleation site of each new layer of InAs and catalyst surface energy play a decisive role in the growth of the zinc-blende structure. This study provides new insights into the growth mechanism of zinc-blende-structured III-V nanowires.

引用

页码：6597 / 6603

页数：7

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