Catalyst-free synthesis of vertically-aligned ZnO nanowires by nanoparticle-assisted pulsed laser deposition

R. Q. Guo, J. Nishimura, M. Matsumoto, D. Nakamura, T. Okada

研究成果: Contribution to journalArticle査読

40 被引用数 (Scopus)

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 for the growth of the nanowires. The surface density of the nanowires can be controlled by varying the density of nanoparticles, which is in turn achieved by varying ablation laser parameters such as the energy and the repetition rate. 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.

本文言語英語
論文番号843
ページ(範囲)843-847
ページ数5
ジャーナルApplied Physics A: Materials Science and Processing
93
4
DOI
出版ステータス出版済み - 12 2008

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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