Study on luminescence enhancement of ZnO nano particles on metal

2011 Fiscal Year Final Research Report

• Project/Area Number: 21540329
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: Osaka Institute of Technology
• Principal Investigator: HARADA Yoshiyuki 大阪工業大学, 工学部, 准教授 (20288757)
• Project Period (FY): 2009 – 2011
• Keywords: 光物性

Research Abstract

Luminescence enhancement of ZnO nanoparticles on metal surfaces has been studied. Emission intensity of exciton transition is about tens of times for Ag than that for quartz surface, and strongly depends on the kind and surface roughness of metal. The intensity increases remarkably when the particle size is almost the same as the roughness. The enhancement is partially attributed to suppressing of the nonradiative recombination. Emission intensity in ZnO nanoparticles on the Ag surface with inverse-Pyramid structure increases as compared with no structure. In an application of these results, random laser was observed from ZnO nanoparticles dispersed on the rough surface of metal successfully.

Research Products

• [Journal Article] Emission spectroscopy divalent-cation-doped GaN photocatalysts (2011)
  • Author(s): T. Hirai, S. Ikeda, M. Matsumura, N. Saito, H. Nishiyama, Y. Inoue, Y. Harada, N. Ohno, K. Maeda, J. Kubota, and K. Domen
  • Journal Title: J. Appl. Physics Volume: 110 Pages: 113526-1-113526-7
  • DOI: DOI:10.1063/1.3665225
  • Peer Reviewed
• [Journal Article] Cl Doping Effect by Thermal Treatment with KCl for ZnO Single Crystals (2011)
  • Author(s): A. Fujimoto, and Y. Harada
  • Journal Title: MRS Proceedings Volume: vol.1288 Pages: 06-20
  • Peer Reviewed
• [Journal Article] ECR-MBE法により作製したSi(111)基板上GaNヘテロエピタキシャル成長 (2010)
  • Author(s): 淀徳男, 山田勝, 原田義之
  • Journal Title: 大阪工業大学紀要 Volume: 55-1 Pages: 29-41
  • Peer Reviewed
• [Journal Article] Influence of GaN intermediate layer on film characteristic and growth process of InN with N-polarity on Si(111) substrates by electron cyclotron resonance plasma-assisted molecular-beam epitaxy (2009)
  • Author(s): T. Yodo, T. Mizutani, A. Fujimoto, Y. Harada
  • Journal Title: Extended Abs. of 28th Electronic Material Symposium Pages: 45-46
• [Journal Article] Luminescence enhancement of ZnO nanoparticles on metal surface (2009)
  • Author(s): Y. Harada, I. Tanahashi, and N, Ohno
  • Journal Title: Journal of Luminescence Volume: 129 Pages: 1759-1761
  • Peer Reviewed
• [Presentation] Ag/TiO_2薄膜によるローダミン6Gの表面増強ラマン散乱 (2011)
  • Author(s): 野村佑哉, 原田義之、棚橋一郎
  • Organizer: 第25回(2011)インキュベーションラボ研究発表会
  • Place of Presentation: 大阪工業大学
  • Year and Date: 2011-12-06
• [Presentation] Cl Doping Effect by Thermal Treatment with KCl for ZnO Single Crystals (2010)
  • Author(s): A. Fujimoto, and Y. Harada
  • Organizer: 2010 MRS Fall Meeting
  • Place of Presentation: Boston, USA
  • Year and Date: 2010-11-30
• [Presentation] ECRプラズマMBE法によるSi基板上GaNの低温成長における結晶損傷とイオン低減による高品質化 (2010)
  • Author(s): 淀徳男, 原田義之
  • Organizer: 第71回応用物理学会学術講演会
  • Place of Presentation: 長崎大学
  • Year and Date: 2010-09-14
• [Presentation] 窒化ガリウム系水分解光触媒の電子状態 (2010)
  • Author(s): 平井豪, 原田義之, 大野宣人, 池田茂, 松村道雄, 吉田真明, 前田和彦, 久保田純, 堂免一成
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-22
• [Presentation] アルカリハライドで表面コートしたZnO微粒子の励起子発光 (2009)
  • Author(s): 檀原有吾, 神村共住, 原田義之, 大野宣人
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-27
• [Presentation] ZnOナノ粒子の高密度励起子発光 (2009)
  • Author(s): 原田義之, 大野宣人
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-25
• [Remarks]
  • URL: http://www.oit.ac.jp/japanese/nanotech/