Aligned growth of ZnO nanowires by laser ablation and their applications

Tatsuo Okada, Ruiqian Guo, Jun Nishimura, Masato Matsumoto, M. Higashihata, D. Nakamura

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Vertically aligned ZnO nanowires have been successfully synthesized on c-cut sapphire substrates by a catalyst-free nanoparticle-assisted pulsed-laser ablation deposition (NAPLD) in Ar and N2 background gases. In NAPLD, the nanoparticles formed in the background gas by laser ablation are used as a starting material for the growth of the nanowires. The surface density of the nanowires can be controlled by varying the density of nanoparticles, which are accomplished by changing the energy of the ablation laser, the repetition rate of the laser and so on. When single ZnO nanowire synthesized in a N2 background gas was excited by 355 nm laser-pulse with a pulse-width of 8 ns, stimulated emission was clearly observed, indicating high quality of the nanowire. These nanowires were used as building blocks for an ultraviolet photo-sensor, field emitters and an ultraviolet light emitting diode with a structure of n-ZnO/ZnO nanowire/p-GaN.

本文言語英語
ホスト出版物のタイトル3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008 - Conference Proceedings
出版社Laser Institute of America
ページ825-829
ページ数5
ISBN(印刷版)9780912035895
DOI
出版ステータス出版済み - 1 1 2008
イベント3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008 - Beijing, 中国
継続期間: 4 16 20084 18 2008

出版物シリーズ

名前3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008 - Conference Proceedings

その他

その他3rd Pacific International Conference on Applications of Lasers and Optics, PICALO 2008
Country中国
CityBeijing
Period4/16/084/18/08

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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