Developement of ZnO nanopartucle coated near uv light emitting diodes

• Project/Area Number: 25630150
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Electron device/Electronic equipment
• Research Institution: Shimane University
• Principal Investigator: Fujita Yasuhisa 島根大学, 総合理工学研究科(研究院), 教授 (10314618)
• Co-Investigator(Kenkyū-buntansha): YOSHIDA Toshiyuki 島根大学, 大学院総合理工学研究科, 教授 (50335551)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 酸化亜鉛 / 発光ダイオード / 塗布型 / ナノ粒子 / p型 / 近紫外 / 低コスト / 窒素ドープ / ＬＥＤ / 紫外線 / ｐ型 / 励起子

Outline of Final Research Achievements

It was performed that the investigation of mechanism of electro-luminescence and improvement of device properties for near UV light emitting diodes using nitrogen doped ZnO nanoparticle layers deposited on n-type ZnO films. The observation of hole injection from p-type nanoparticles to n-type layers, the improvement of the yield of p-type nanoparticles preparation and reduction of leak current and temperature were accomplished. The brightness of the particles with luminescence was comparable to that of commercial near UV LEDs, though the total power was still weak.

Research Products

• [Journal Article] Synthesis of nitrogen-doped ZnO nanoparticles by RF thermal plasma (2016)
  • Author(s): Yuto Hiragino, Toshimi Tanaka, Hiroshi Takeuchi, Akira Takeuchi, Jie Lin, Toshiyuki Yoshida
  • Journal Title: Solid-State Electronics Volume: 118 Pages: 41-45
  • DOI: 10.1016/j.sse.2016.01.003
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Electroluminescence from nitrogen doped ZnO nanoparticles (2014)
  • Author(s): Yasuhisa Fujita, Kyota Moriyama, Yuto Hiragino, Yutaka Furubayashi, Hideki Hashimoto and Toshiyuki Yoshida
  • Journal Title: physica status solidi Volume: C Issue: 7-8 Pages: 1-3
  • DOI: 10.1002/pssc.201300645
  • Peer Reviewed
• [Presentation] Localized surface plasmon effect for ZnO nanoparticles based devices (2016)
  • Author(s): Jie Lin, Hirotaka Tanada, Kenta Odawara, Yuto Hiragino, Yasuhisa Fujita
  • Organizer: EMN Meeting on Light-Emitting Diodes 2016
  • Place of Presentation: Chengdu, China
  • Year and Date: 2016-03-01
  • Int'l Joint Research / Invited
• [Presentation] .Localized surface plasmon effect for ZnO nanoparticles based devices (2015)
  • Author(s): Jie Lin, Hirotaka Tanada, Kenta Odawara, Yuto Hiragino, Yasuhisa Fujita
  • Organizer: JSAP‐OSA Joint Symposia 2015
  • Place of Presentation: Nagoya Congress Center, Nagoya
  • Year and Date: 2015-09-13
  • Int'l Joint Research
• [Presentation] 高周波熱プラズマ法により生成した窒素ドープ酸化亜鉛ナノ粒子のフォトルミネッセンス特性 (2015)
  • Author(s): 平儀野 雄斗，清山 拓史，阿部 耕介， Jie Lin，吉田 俊幸，藤田 恭久
  • Organizer: 第62回応用物理学会春季学術講演会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2015-09-13
• [Presentation] 酸化亜鉛ナノ粒子塗布型発光ダイオードの開発 (2015)
  • Author(s): 藤田恭久
  • Organizer: 技術交流財団「酸化亜鉛系機能性膜に関する革新的液相結晶成長研究会」
  • Place of Presentation: 科学技術交流財団研究交流センター(名古屋）
  • Year and Date: 2015-07-30
  • Invited
• [Presentation] 高周波熱プラズマ法による窒素ドープ酸化亜鉛ナノ粒子の生成 (2015)
  • Author(s): 平儀野 雄斗、田中 暁巳、竹内 啓、竹内 浩、藤田 恭久
  • Organizer: 第62回応用物理学会春季学術講演会
  • Place of Presentation: 東海大学
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] n型酸化亜鉛発光層を用いた酸化亜鉛ナノ粒子塗布型紫外線発光ダイオードの作製 (2015)
  • Author(s): 清山 拓史，平儀野 雄斗，阿部 耕介，橋本 英樹，Jie Lin，吉田 俊幸，藤田 恭久
  • Organizer: 第62回応用物理学会春季学術講演
  • Place of Presentation: 東海大学
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] たたら製鉄を起源とする島根のナノテク：医療用ナノテクや、低価格で大量生産可能な光源材料 (2014)
  • Author(s): 藤田恭久
  • Organizer: 第31回「センサ・マイクロマシンと応用システム」シンポジウム
  • Place of Presentation: くにびきメッセ，松江
  • Year and Date: 2014-10-20 – 2014-10-22
  • Invited
• [Presentation] 酸化亜鉛ナノ粒子塗布型紫外線発光ダイオード (2014)
  • Author(s): 藤田 恭久，清山 拓史, 狩野 祐太，阿部 耕介，平儀野 雄斗，橋本 英樹，吉田 俊幸
  • Organizer: 第75回応用物理学会秋季学術講演会
  • Place of Presentation: 北海道大学
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] 超低コスト簡易ナノ粒子塗布プロセスによるZnO近紫外線LEDの開発 (2014)
  • Author(s): 藤田 恭久，柳瀬 将吾
  • Organizer: STARCワークショップ2014
  • Place of Presentation: 新横浜国際ホテル
  • Year and Date: 2014-09-03
• [Presentation] 酸化亜鉛ナノ粒子を用いた塗布型発光ダイオードの作製 (2014)
  • Author(s): 清山 拓史，平儀野 雄斗，阿部 耕介，橋本 英樹，藤田 恭久
  • Organizer: 2014年度応用物理学会中国四国支部学術講演会
  • Place of Presentation: 島根大学
  • Year and Date: 2014-07-26
• [Presentation] 2.Evaluation of ZnO nanoparticles for devices and medical applications by Raman spectroscopy (2014)
  • Author(s): Yasuhisa Fujita, Ryosuke Tanino, Kazuki Hamada, Hideki Hashimoto Riruke Maruyama and Takeshi Isobe,
  • Organizer: The Second Taiwan International Symposium on Raman Spectroscopy
  • Place of Presentation: Hualien, Taiwan
  • Year and Date: 2014-06-23 – 2014-06-24
• [Presentation] 1.Near UV Light Emitting Diodes using nitrogen doped ZnO Nanoparticles (2014)
  • Author(s): Yasuhisa Fujita, Yuto Hiragino, Hirofumi Seiyama, Yuta Karino, Hideki Hashimoto and Toshiyuki Yoshida
  • Organizer: International Conference on Electronic Materials
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2014-06-10 – 2014-06-14
• [Presentation] 窒素ドープ酸化亜鉛ナノ粒子の生成と塗布型紫外線発光ダイオード (2014)
  • Author(s): 清山 拓史, 平儀野 雄斗， 狩野 祐太，橋本 英樹，藤田 恭久
  • Organizer: ナノ学会
  • Place of Presentation: 京都大学
  • Year and Date: 2014-05-22 – 2014-05-24
• [Presentation] Electroluminescence from nitrogen doped ZnO nanoparticles
  • Author(s): Yasuhisa Fujita, Kyota Moriyama, Yuto Hiragino, Yutaka Furubayashi, Hideki Hashimoto and Toshiyuki Yoshida
  • Organizer: The 16th International Conference on II-VI Compound and Related Materials
  • Place of Presentation: 長浜ロイヤルホテル
• [Presentation] Measurement of Distribution of P-Type ZnO Nano-Particles by Scanning Nonlinear Dielectric Microscopy
  • Author(s): Ichirou Takahashi, Hideki Hashimoto, Yasuhisa Fujita, Yasuo Cho
  • Organizer: 21st International colloquium on Scanning Probe Microscopy
  • Place of Presentation: つくば国際会議場
• [Presentation] ナノテクノロジーが切り開くグリーン＆ライフイノベーション
  • Author(s): 藤田恭久
  • Organizer: 環境・福祉・住生活向け商談会with大和ハウス工業株式会社
  • Place of Presentation: 島根県産業技術センター
  • Invited
• [Presentation] 酸化亜鉛ナノ粒子を用いた塗布型近紫外線発光ダイオードの開発
  • Author(s): 藤田 恭久，清山 拓史,狩野 祐太，平儀野 雄斗，橋本 英樹
  • Organizer: 第351回蛍光体同学会講演会
  • Place of Presentation: 東京，化学会館ホール
  • Invited
• [Presentation] 窒素ドープ酸化亜鉛ナノ粒子の生成と塗布型紫外線発光ダイオード
  • Author(s): 平儀野 雄斗，清山 拓史, 狩野 祐太，橋本 英樹，藤田 恭久
  • Organizer: 第61回応用物理学会春季学術講演会
  • Place of Presentation: 青山学院大学（相模原）
• [Patent(Industrial Property Rights)] 酸化亜鉛微粒子の製造方法、酸化亜鉛微粒子 (2014)
  • Inventor(s): 1. 藤田 恭久，平儀野 雄斗，田中 暁己，竹内 浩
  • Industrial Property Rights Holder: 1. 藤田 恭久，平儀野 雄斗，田中 暁己，竹内 浩
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2014-191465
  • Filing Date: 2014-09-19