Fabrication of ZnO crystals by UV-laser annealing on ZnO nanoparticles prepared by laser ablation method

T. Shimogaki, H. Kawahara, M. Higashihata, H. Ikenoue, D. Nakamura, Y. Nakata, T. Okada

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

4 被引用数 (Scopus)

抄録

Various zinc oxide (ZnO) nanocrystals are expected as new building blocks for optoelectronic devices. Among them, we have studied about fabricating ZnO nanowires using nanoparticle-assisted pulsed laser deposition (NAPLD). Recently, we achieved to fabricate the periodically-aligned ZnO nanowires with a period of from 4 to 5 μm using interfering four-beams of nanosecond ultraviolet (UV) laser processing. ZnO nanowires with diameters of several dozen nanometers were grown on the ZnO buffer layer prepared by pulsed laser deposition at the low-chamber pressure of 3 Pa. Additionally, crystallization of ZnO nanoparticles collected on a sapphire substrate was achieved by UV-laser annealing. In this method, ZnO nanoparticles were collected at room temperature, then they were laser-annealed with a KrF excimer laser. The particle size increased by instantaneous melting and aggregation of ZnO nanoparticles because of the high absorption efficiency of ZnO in the UV spectral region. It was found that the optical property was improved by UV-laser annealing process. Additionally, their x-ray diffraction peaks of wurtzite ZnO crystals had narrower full width half maximum than those before laser annealing.

本文言語英語
ホスト出版物のタイトルOxide-Based Materials and Devices VI
編集者Ferechteh H. Teherani, David C. Look, David J. Rogers
出版社SPIE
ISBN(電子版)9781628414547
DOI
出版ステータス出版済み - 2015
イベントOxide-Based Materials and Devices VI - San Francisco, 米国
継続期間: 2月 8 20152月 11 2015

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
9364
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

その他

その他Oxide-Based Materials and Devices VI
国/地域米国
CitySan Francisco
Period2/8/152/11/15

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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