Laser action in ZnO nanoneedles selectively grown on silicon and plastic substrates

Shu Ping Lau; H. Y. Yang; Siu Fung Yu; H. D. Li; M. Tanemura; T. Okita; H. Hatano; H. H. Hng

doi:10.1063/1.1984106

Laser action in ZnO nanoneedles selectively grown on silicon and plastic substrates

Shu Ping Lau, H. Y. Yang, Siu Fung Yu, H. D. Li, M. Tanemura, T. Okita, H. Hatano, H. H. Hng

Research output: Journal article publication › Journal article › Academic research › peer-review

69 Citations (Scopus)

Abstract

An ion-beam technique has been employed to fabricate nanoscale needlelike structures in ZnO thin films on silicon and plastic substrates at room temperature. The ZnO nanoneedles showed a single-crystalline wurtzite structure, the stem of which was around 100 nm in diameter. The sharp tips of the nanoneedles exhibited an apex angle of 20° as measured by transmission electron microscopy. Room-temperature ultraviolet random lasing action was observed in the ZnO nanoneedle arrays under 355 nm optical excitation.

Original language	English
Article number	013104
Journal	Applied Physics Letters
Volume	87
Issue number	1
DOIs	https://doi.org/10.1063/1.1984106
Publication status	Published - 4 Jul 2005
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1984106

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abstract = "An ion-beam technique has been employed to fabricate nanoscale needlelike structures in ZnO thin films on silicon and plastic substrates at room temperature. The ZnO nanoneedles showed a single-crystalline wurtzite structure, the stem of which was around 100 nm in diameter. The sharp tips of the nanoneedles exhibited an apex angle of 20° as measured by transmission electron microscopy. Room-temperature ultraviolet random lasing action was observed in the ZnO nanoneedle arrays under 355 nm optical excitation.",

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AU - Hatano, H.

AU - Hng, H. H.

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Laser action in ZnO nanoneedles selectively grown on silicon and plastic substrates

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