Formation of metastable silver nanowires of hexagonal structure and their structural transformation under electron beam irradiation

Changhao Liang, Kazuya Terabe, Tsuyoshi Hasegawa, Masakazu Aono

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We fabricated Ag nanowires (AgNWs) of 4H hexagonal structure with a diameter of ca. 20 nm using dc electrodeposition inside an anodic alumina oxide (AAO) membrane at low current density. 4H-AgNWs were formed in scale inside an AAO membrane with a pore diameter of ca. 20 nm. We propose that a small-pore-size AAO membrane and appropriate growth conditions favor the growth of 4H-Ag. Transmission electron microscopy (TEM) revealed the coexistence of single-crystalline 4H-AgNWs and fcc-AgNWs. The 4H-AgNWs tended to transform into fee Ag particles under intense electron beam (EB) irradiation, which may be attributed to the knock-on displacement of Ag atoms by electrons generating defects.

Original languageEnglish
Pages (from-to)6046-6048
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number7
DOIs
Publication statusPublished - 2006 Jul 7
Externally publishedYes

Fingerprint

Nanowires
Electron beams
Silver
nanowires
silver
Irradiation
electron beams
irradiation
Alumina
aluminum oxides
membranes
Membranes
Oxides
oxides
porosity
low currents
Electrodeposition
electrodeposition
Pore size
Current density

Keywords

  • Electron beam irradiation
  • Hexagonal structure
  • Silver nanowires
  • Structural transformation
  • Template synthesis

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "We fabricated Ag nanowires (AgNWs) of 4H hexagonal structure with a diameter of ca. 20 nm using dc electrodeposition inside an anodic alumina oxide (AAO) membrane at low current density. 4H-AgNWs were formed in scale inside an AAO membrane with a pore diameter of ca. 20 nm. We propose that a small-pore-size AAO membrane and appropriate growth conditions favor the growth of 4H-Ag. Transmission electron microscopy (TEM) revealed the coexistence of single-crystalline 4H-AgNWs and fcc-AgNWs. The 4H-AgNWs tended to transform into fee Ag particles under intense electron beam (EB) irradiation, which may be attributed to the knock-on displacement of Ag atoms by electrons generating defects.",
keywords = "Electron beam irradiation, Hexagonal structure, Silver nanowires, Structural transformation, Template synthesis",
author = "Changhao Liang and Kazuya Terabe and Tsuyoshi Hasegawa and Masakazu Aono",
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T1 - Formation of metastable silver nanowires of hexagonal structure and their structural transformation under electron beam irradiation

AU - Liang, Changhao

AU - Terabe, Kazuya

AU - Hasegawa, Tsuyoshi

AU - Aono, Masakazu

PY - 2006/7/7

Y1 - 2006/7/7

N2 - We fabricated Ag nanowires (AgNWs) of 4H hexagonal structure with a diameter of ca. 20 nm using dc electrodeposition inside an anodic alumina oxide (AAO) membrane at low current density. 4H-AgNWs were formed in scale inside an AAO membrane with a pore diameter of ca. 20 nm. We propose that a small-pore-size AAO membrane and appropriate growth conditions favor the growth of 4H-Ag. Transmission electron microscopy (TEM) revealed the coexistence of single-crystalline 4H-AgNWs and fcc-AgNWs. The 4H-AgNWs tended to transform into fee Ag particles under intense electron beam (EB) irradiation, which may be attributed to the knock-on displacement of Ag atoms by electrons generating defects.

AB - We fabricated Ag nanowires (AgNWs) of 4H hexagonal structure with a diameter of ca. 20 nm using dc electrodeposition inside an anodic alumina oxide (AAO) membrane at low current density. 4H-AgNWs were formed in scale inside an AAO membrane with a pore diameter of ca. 20 nm. We propose that a small-pore-size AAO membrane and appropriate growth conditions favor the growth of 4H-Ag. Transmission electron microscopy (TEM) revealed the coexistence of single-crystalline 4H-AgNWs and fcc-AgNWs. The 4H-AgNWs tended to transform into fee Ag particles under intense electron beam (EB) irradiation, which may be attributed to the knock-on displacement of Ag atoms by electrons generating defects.

KW - Electron beam irradiation

KW - Hexagonal structure

KW - Silver nanowires

KW - Structural transformation

KW - Template synthesis

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