Large-scale fabrication of ZnO micro-and nano-structures by microwave thermal evaporation deposition

Hongbin Cheng, Jiping Cheng, Yunjin Zhang, Qing Ming Wang

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

A novel thermal evaporation-deposition approach using microwave energy was employed for the fabrication of ZnO micro-and nano-structures. Batch fabrication of ZnO structures including microtubes, microrods, nanowires and nanobelts were successfully obtained with a unique source materials-substrate configuration in achieving desirable temperature profile. Zinc or zinc oxide source materials are evaporating from the high-temperature zone in an enclosure and single crystalline nano-or micro-structures are grown on the substrate materials with controllable dimensions by using appropriate processing conditions. Substrate, temperature, and catalyst showed significant impacts on the controlled growth of the ZnO nano- and micro-structures. X-ray diffraction (XRD) and scanning electron microscopy (SEM) characterizations reveal that these products are pure, structurally uniform, and single crystalline. The photoluminescence (PL) exhibits strong ultraviolet emission at room temperature, indicating potential applications for short-wave light-emitting photonic devices.

Original languageEnglish (US)
Pages (from-to)34-40
Number of pages7
JournalJournal of Crystal Growth
Volume299
Issue number1
DOIs
StatePublished - Feb 1 2007

Fingerprint

Thermal evaporation
Microwaves
evaporation
microwaves
Fabrication
fabrication
microstructure
Substrates
ultraviolet emission
enclosure
Crystalline materials
Zinc Oxide
Nanobelts
zinc oxides
temperature profiles
Temperature
Photonic devices
Microstructure
nanowires
zinc

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Cheng, Hongbin ; Cheng, Jiping ; Zhang, Yunjin ; Wang, Qing Ming. / Large-scale fabrication of ZnO micro-and nano-structures by microwave thermal evaporation deposition. In: Journal of Crystal Growth. 2007 ; Vol. 299, No. 1. pp. 34-40.
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Large-scale fabrication of ZnO micro-and nano-structures by microwave thermal evaporation deposition. / Cheng, Hongbin; Cheng, Jiping; Zhang, Yunjin; Wang, Qing Ming.

In: Journal of Crystal Growth, Vol. 299, No. 1, 01.02.2007, p. 34-40.

Research output: Contribution to journalArticle

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