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Title: One-dimensional Au/Si heterojunction-microstructure and phase evolution under electron beam irradiation

Abstract

A special type of Au/Si nanowire heterojunctions, which are wrapped by SiO{sub 2} surface layer, is demonstrated in this work. Nanochannels exist in-between the Si-core/SiO{sub 2}-sheath close to the junction, which provides a flowing path for the Au at elevated temperatures. The Au-Si interactions during the reversible flowing process lead to an interesting phase evolution of the junction system, which eventually result in self-formation of the secondary nanostructures at the original Si/SiO{sub 2} interface. The observed microstructure/phase evolution of the Au-Si nanowire junction under the focused electron beam irradiation suggests an approach to modify and pattern the Si nanowire surface, which may have potential applications in the nanoelectronic industry.

Authors:
;  [1]
  1. Department of Physics, Chinese University of Hong Kong, Shatin, New Territory, Hong Kong (China)
Publication Date:
OSTI Identifier:
20776925
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 87; Journal Issue: 26; Other Information: DOI: 10.1063/1.2158029; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CRYSTAL STRUCTURE; ELECTRON BEAMS; EVOLUTION; GOLD; HETEROJUNCTIONS; INTERFACES; IRRADIATION; LAYERS; MICROSTRUCTURE; ONE-DIMENSIONAL CALCULATIONS; QUANTUM WIRES; SEMICONDUCTOR MATERIALS; SILICA; SILICON; SILICON OXIDES; SURFACE TREATMENTS

Citation Formats

Li Quan, and Jiao Yang. One-dimensional Au/Si heterojunction-microstructure and phase evolution under electron beam irradiation. United States: N. p., 2005. Web. doi:10.1063/1.2158029.
Li Quan, & Jiao Yang. One-dimensional Au/Si heterojunction-microstructure and phase evolution under electron beam irradiation. United States. doi:10.1063/1.2158029.
Li Quan, and Jiao Yang. Mon . "One-dimensional Au/Si heterojunction-microstructure and phase evolution under electron beam irradiation". United States. doi:10.1063/1.2158029.
@article{osti_20776925,
title = {One-dimensional Au/Si heterojunction-microstructure and phase evolution under electron beam irradiation},
author = {Li Quan and Jiao Yang},
abstractNote = {A special type of Au/Si nanowire heterojunctions, which are wrapped by SiO{sub 2} surface layer, is demonstrated in this work. Nanochannels exist in-between the Si-core/SiO{sub 2}-sheath close to the junction, which provides a flowing path for the Au at elevated temperatures. The Au-Si interactions during the reversible flowing process lead to an interesting phase evolution of the junction system, which eventually result in self-formation of the secondary nanostructures at the original Si/SiO{sub 2} interface. The observed microstructure/phase evolution of the Au-Si nanowire junction under the focused electron beam irradiation suggests an approach to modify and pattern the Si nanowire surface, which may have potential applications in the nanoelectronic industry.},
doi = {10.1063/1.2158029},
journal = {Applied Physics Letters},
number = 26,
volume = 87,
place = {United States},
year = {Mon Dec 26 00:00:00 EST 2005},
month = {Mon Dec 26 00:00:00 EST 2005}
}