Microtwinning in template-synthesized single-crystal metal nanowires

Jinguo Wang, Mingliang Tian, Thomas E. Mallouk, Moses Hung-Wai Chan

Research output: Contribution to journalArticle

145 Citations (Scopus)

Abstract

Twinning is one of the most popular planar defects in nanocrystals, and it is frequently observed in face-centered cubic (fcc) structured metallic nanocrystals. In this study, copper, silver, and gold nanowires with diameters of 30-50 nm were prepared by electrochemical deposition in "track-etched" polycarbonate membranes. High-resolution transmission electron microscopy (HRTEM) and electron diffraction were used to study the microstructure of the nanowires. Microtwins were observed to be dependent on growth orientation in the single-crystal metal (copper, silver, and gold) nanowires. In single-crystal nanowires with a [111] growth orientation, both primary (111)[112̄] and secondary (1̄1̄1)[112] twins were observed, whereas in the wires with a [112̄] growth orientation, lengthwise twins and stacking faults were the dominant features. No twinning was observed in nanowires that grew along the [100] and [110] directions. The crystallography of the twins was characterized by HRTEM and electron microdiffraction. The twinning mechanism (nucleation and growth) is discussed in relation to a two-dimensional (2D) nucleation and growth mechanism for the single-crystal nanowires.

Original languageEnglish (US)
Pages (from-to)841-845
Number of pages5
JournalJournal of Physical Chemistry B
Volume108
Issue number3
StatePublished - Jan 22 2004

Fingerprint

Nanowires
nanowires
templates
Metals
Single crystals
single crystals
Twinning
twinning
Crystal orientation
metals
polycarbonate
High resolution transmission electron microscopy
Silver
Gold
Nanocrystals
Copper
nanocrystals
Nucleation
silver
nucleation

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Wang, J., Tian, M., Mallouk, T. E., & Chan, M. H-W. (2004). Microtwinning in template-synthesized single-crystal metal nanowires. Journal of Physical Chemistry B, 108(3), 841-845.
Wang, Jinguo ; Tian, Mingliang ; Mallouk, Thomas E. ; Chan, Moses Hung-Wai. / Microtwinning in template-synthesized single-crystal metal nanowires. In: Journal of Physical Chemistry B. 2004 ; Vol. 108, No. 3. pp. 841-845.
@article{f8faba9e8c044a5981dbbd397edddea9,
title = "Microtwinning in template-synthesized single-crystal metal nanowires",
abstract = "Twinning is one of the most popular planar defects in nanocrystals, and it is frequently observed in face-centered cubic (fcc) structured metallic nanocrystals. In this study, copper, silver, and gold nanowires with diameters of 30-50 nm were prepared by electrochemical deposition in {"}track-etched{"} polycarbonate membranes. High-resolution transmission electron microscopy (HRTEM) and electron diffraction were used to study the microstructure of the nanowires. Microtwins were observed to be dependent on growth orientation in the single-crystal metal (copper, silver, and gold) nanowires. In single-crystal nanowires with a [111] growth orientation, both primary (111)[112̄] and secondary (1̄1̄1)[112] twins were observed, whereas in the wires with a [112̄] growth orientation, lengthwise twins and stacking faults were the dominant features. No twinning was observed in nanowires that grew along the [100] and [110] directions. The crystallography of the twins was characterized by HRTEM and electron microdiffraction. The twinning mechanism (nucleation and growth) is discussed in relation to a two-dimensional (2D) nucleation and growth mechanism for the single-crystal nanowires.",
author = "Jinguo Wang and Mingliang Tian and Mallouk, {Thomas E.} and Chan, {Moses Hung-Wai}",
year = "2004",
month = "1",
day = "22",
language = "English (US)",
volume = "108",
pages = "841--845",
journal = "Journal of Physical Chemistry B",
issn = "1520-6106",
number = "3",

}

Wang, J, Tian, M, Mallouk, TE & Chan, MH-W 2004, 'Microtwinning in template-synthesized single-crystal metal nanowires', Journal of Physical Chemistry B, vol. 108, no. 3, pp. 841-845.

Microtwinning in template-synthesized single-crystal metal nanowires. / Wang, Jinguo; Tian, Mingliang; Mallouk, Thomas E.; Chan, Moses Hung-Wai.

In: Journal of Physical Chemistry B, Vol. 108, No. 3, 22.01.2004, p. 841-845.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Microtwinning in template-synthesized single-crystal metal nanowires

AU - Wang, Jinguo

AU - Tian, Mingliang

AU - Mallouk, Thomas E.

AU - Chan, Moses Hung-Wai

PY - 2004/1/22

Y1 - 2004/1/22

N2 - Twinning is one of the most popular planar defects in nanocrystals, and it is frequently observed in face-centered cubic (fcc) structured metallic nanocrystals. In this study, copper, silver, and gold nanowires with diameters of 30-50 nm were prepared by electrochemical deposition in "track-etched" polycarbonate membranes. High-resolution transmission electron microscopy (HRTEM) and electron diffraction were used to study the microstructure of the nanowires. Microtwins were observed to be dependent on growth orientation in the single-crystal metal (copper, silver, and gold) nanowires. In single-crystal nanowires with a [111] growth orientation, both primary (111)[112̄] and secondary (1̄1̄1)[112] twins were observed, whereas in the wires with a [112̄] growth orientation, lengthwise twins and stacking faults were the dominant features. No twinning was observed in nanowires that grew along the [100] and [110] directions. The crystallography of the twins was characterized by HRTEM and electron microdiffraction. The twinning mechanism (nucleation and growth) is discussed in relation to a two-dimensional (2D) nucleation and growth mechanism for the single-crystal nanowires.

AB - Twinning is one of the most popular planar defects in nanocrystals, and it is frequently observed in face-centered cubic (fcc) structured metallic nanocrystals. In this study, copper, silver, and gold nanowires with diameters of 30-50 nm were prepared by electrochemical deposition in "track-etched" polycarbonate membranes. High-resolution transmission electron microscopy (HRTEM) and electron diffraction were used to study the microstructure of the nanowires. Microtwins were observed to be dependent on growth orientation in the single-crystal metal (copper, silver, and gold) nanowires. In single-crystal nanowires with a [111] growth orientation, both primary (111)[112̄] and secondary (1̄1̄1)[112] twins were observed, whereas in the wires with a [112̄] growth orientation, lengthwise twins and stacking faults were the dominant features. No twinning was observed in nanowires that grew along the [100] and [110] directions. The crystallography of the twins was characterized by HRTEM and electron microdiffraction. The twinning mechanism (nucleation and growth) is discussed in relation to a two-dimensional (2D) nucleation and growth mechanism for the single-crystal nanowires.

UR - http://www.scopus.com/inward/record.url?scp=0742269401&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0742269401&partnerID=8YFLogxK

M3 - Article

VL - 108

SP - 841

EP - 845

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

SN - 1520-6106

IS - 3

ER -

Wang J, Tian M, Mallouk TE, Chan MH-W. Microtwinning in template-synthesized single-crystal metal nanowires. Journal of Physical Chemistry B. 2004 Jan 22;108(3):841-845.