Bidirectional growth of ZnO nanowires with high optical properties directly on Zn foil

Zhang Wei Wu, Shing Long Tyan, Chia Rong Lee, Ting Shan Mo

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

ZnO nanowires (NWs) were directly grown on zinc foils through a two-step process: (i) Zn foils fabrication and (ii) thermal oxidization at temperature 400 °C. The dense and orderly aligned ZnO NWs grown on Zn hexagonal-faceted surface presented preferential growth in the [101] orientation and showed bidirectional growth mode with an intersection angle of about 60°. The faceted and bidirectional growth mode of ZnO NWs would be applicable in the fabrication of planar nanodevices. The edge growth mechanism is proposed for the growth of NWs. In photoluminescence (PL) studies, we have observed exciton peak around 368 nm with a small PL full width at half maximum (~ 8 meV) and visible emission was strongly suppressed. These characteristics indicated that the ZnO NWs had high optical properties.

Original languageEnglish
Pages (from-to)102-107
Number of pages6
JournalThin Solid Films
Volume621
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Metal foil
Nanowires
foils
nanowires
Optical properties
optical properties
Photoluminescence
photoluminescence
Fabrication
fabrication
Full width at half maximum
Excitons
intersections
Zinc
zinc
excitons
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

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abstract = "ZnO nanowires (NWs) were directly grown on zinc foils through a two-step process: (i) Zn foils fabrication and (ii) thermal oxidization at temperature 400 °C. The dense and orderly aligned ZnO NWs grown on Zn hexagonal-faceted surface presented preferential growth in the [101] orientation and showed bidirectional growth mode with an intersection angle of about 60°. The faceted and bidirectional growth mode of ZnO NWs would be applicable in the fabrication of planar nanodevices. The edge growth mechanism is proposed for the growth of NWs. In photoluminescence (PL) studies, we have observed exciton peak around 368 nm with a small PL full width at half maximum (~ 8 meV) and visible emission was strongly suppressed. These characteristics indicated that the ZnO NWs had high optical properties.",
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Bidirectional growth of ZnO nanowires with high optical properties directly on Zn foil. / Wu, Zhang Wei; Tyan, Shing Long; Lee, Chia Rong; Mo, Ting Shan.

In: Thin Solid Films, Vol. 621, 01.01.2017, p. 102-107.

Research output: Contribution to journalArticle

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AU - Tyan, Shing Long

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