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Title: Chemical reactivity of twin-modified copper nanowire surfaces

Abstract

Effect of twin boundary (TB) spacing on atomic surface structure and chemical reactivity of nanotwinned Cu nanowires (NWs) is investigated. Post-etching surface structure and wire diameter of Cu NWs were examined by transmission electron microscopy. When TB spacing is less than 10 nm, the Cu NWs remain almost intact after chemical attack and show faceted surface structures with low atomic step density. A mechanism based on surface tension torque acting on TB/surface triple junctions is proposed to explain the faceted structure formation and enhanced corrosion resistance of nanotwinned Cu NWs.

Authors:
;  [1]
  1. Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan (China)
Publication Date:
OSTI Identifier:
22483174
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 107; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONNECTORS; COPPER; CORROSION RESISTANCE; ETCHING; NANOWIRES; REACTIVITY; SURFACE TENSION; SURFACES; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats

Huang, Chun-Lung, and Liao, Chien-Neng. Chemical reactivity of twin-modified copper nanowire surfaces. United States: N. p., 2015. Web. doi:10.1063/1.4926648.
Huang, Chun-Lung, & Liao, Chien-Neng. Chemical reactivity of twin-modified copper nanowire surfaces. United States. doi:10.1063/1.4926648.
Huang, Chun-Lung, and Liao, Chien-Neng. Mon . "Chemical reactivity of twin-modified copper nanowire surfaces". United States. doi:10.1063/1.4926648.
@article{osti_22483174,
title = {Chemical reactivity of twin-modified copper nanowire surfaces},
author = {Huang, Chun-Lung and Liao, Chien-Neng},
abstractNote = {Effect of twin boundary (TB) spacing on atomic surface structure and chemical reactivity of nanotwinned Cu nanowires (NWs) is investigated. Post-etching surface structure and wire diameter of Cu NWs were examined by transmission electron microscopy. When TB spacing is less than 10 nm, the Cu NWs remain almost intact after chemical attack and show faceted surface structures with low atomic step density. A mechanism based on surface tension torque acting on TB/surface triple junctions is proposed to explain the faceted structure formation and enhanced corrosion resistance of nanotwinned Cu NWs.},
doi = {10.1063/1.4926648},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 2,
volume = 107,
place = {United States},
year = {2015},
month = {7}
}