Nucleation Antibunching in Catalyst-Assisted Nanowire Growth

被引：102

作者：

Glas, Frank ^{[1
]}

Harmand, Jean-Christophe ^{[1
]}

Patriarche, Gilles ^{[1
]}

机构：

[1] CNRS, Lab Photon & Nanostruct, F-91460 Marcoussis, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 13期

关键词：

PARTICLES;

D O I：

10.1103/PhysRevLett.104.135501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We elaborate InP1-xAsx nanowires by vapor-liquid-solid growth, with small and short composition oscillations produced on purpose with a constant time period. The lengths of these oscillations, measured in single wires by transmission electron microscopy, give access to instantaneous growth rates and their distribution reveals the nucleation statistics. We find that these statistics are strongly sub-Poissonian, which proves that the nucleation events are anticorrelated in time. This effect, specific to nanovolumes, efficiently regulates nanowire growth. We explain it by the rapid depletion of the catalyst droplet in group V atoms upon forming each monolayer of the nanowire.

引用

页数：4

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