Pressure-induced growth evolution of different ZnO nanostructures by a pulsed laser ablation method

P. Zhang, G. D. Zhou, H. B. Gong, H. Y. Xu, D. Nakamura, T. Okada, H. B. Zeng, B. Q. Cao

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

ZnO nanostructure growth evolution from well-aligned two-dimensional nanowalls to one-dimensional nanowire arrays and finally to zero-dimensional nanoparticles was successfully demonstrated by a pulsed laser ablation and deposition growth method, where the growth pressure was proved to be the determinant factor for the formation of different ZnO nanostructures. At lower pressure, nanowall grew due to a prefer nucleation at the grain boundary of a ZnO wetting layer via a vapor-solid process. At middle growth pressure, the ZnO nanowire growth can be described with a nanoparticle-assisted pulsed laser deposition process. At higher growth pressure, due to the strong collision between the ablated ZnO clusters and background gas, only nanoparticles were deposited. These ZnO nanostructured arrays had a preferred c-axis growth orientation on c-cut sapphire substrates. The photoluminescence and field emission properties were also studied.

Original languageEnglish
Pages (from-to)455-462
Number of pages8
JournalScience of Advanced Materials
Volume4
Issue number3-4
DOIs
Publication statusPublished - Mar 1 2012

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Laser ablation
Pulsed lasers
Nanostructures
Nanoparticles
Nanowires
Aluminum Oxide
Pulsed laser deposition
Sapphire
Field emission
Wetting
Photoluminescence
Grain boundaries
Nucleation
Gases
Vapors
Substrates

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Pressure-induced growth evolution of different ZnO nanostructures by a pulsed laser ablation method. / Zhang, P.; Zhou, G. D.; Gong, H. B.; Xu, H. Y.; Nakamura, D.; Okada, T.; Zeng, H. B.; Cao, B. Q.

In: Science of Advanced Materials, Vol. 4, No. 3-4, 01.03.2012, p. 455-462.

Research output: Contribution to journalArticle

Zhang, P. ; Zhou, G. D. ; Gong, H. B. ; Xu, H. Y. ; Nakamura, D. ; Okada, T. ; Zeng, H. B. ; Cao, B. Q. / Pressure-induced growth evolution of different ZnO nanostructures by a pulsed laser ablation method. In: Science of Advanced Materials. 2012 ; Vol. 4, No. 3-4. pp. 455-462.
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