Fabrication and bandgap engineering of doped ZnO microspheres by simple laser ablation in air

Daisuke Nakamura, Tetsuya Shimogaki, Toshinobu Tanaka, Fumiaki Nagasaki, Yuki Fujiwara, Mitsuhiro Higashihata, Hiroshi Ikenoue, Tatsuo Okada

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

2 被引用数 (Scopus)

抄録

We synthesized magnesium (Mg)-doped ZnO microspheres by laser ablation of a ZnO sintered target containing magnesium oxide (MgO) with the fundamental of a Nd:YAG laser at 1064 nm. The well-spherical ZnO microcrystals with diameters of 1-20 μm were collected on a substrate which was put near the ablation spot. X-ray diffraction and micro-Raman spectrum indicate that the ZnO microspheres have a crystalline structure. Room-temperature photoluminescence properties of the microsphere were investigated under third harmonic generation of a Nd:YAG laser excitation at 355 nm. An ultraviolet (UV) lasing in whispering gallery mode (WGM) and blue-shift of the UV WGM peaks were observed from the Mg-doped ZnO microsphere.

本文言語英語
ホスト出版物のタイトルLaser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI
編集者Beat Neuenschwander, Stephan Roth, Costas P. Grigoropoulos, Tetsuya Makimura
出版社SPIE
ISBN(電子版)9781628419702
DOI
出版ステータス出版済み - 1月 1 2016
イベントLaser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI - San Francisco, 米国
継続期間: 2月 15 20162月 18 2016

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
9735
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

その他

その他Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI
国/地域米国
CitySan Francisco
Period2/15/162/18/16

!!!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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