Development of new preparation methods of vanadium oxide colloid particles and their applications to optoelectronic devices

• Project/Area Number: 19710092
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Nanomaterials/Nanobioscience
• Research Institution: Kyoto University
• Principal Investigator: YAMAMOTO Shinpei Kyoto University, 物質-細胞統合システム拠点, 特定拠点助教 (20362395)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥240,000); Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2007: ¥2,600,000 (Direct Cost: ¥2,600,000)
• Keywords: 無機コロイド粒子 / V02 / 金属-絶縁体転移 / コロイド結晶 / V_2O_5

Research Abstract

VO(OiPr)_3の加水分解によるV_2O_5微粒子の合成において,合成条件の最適化を図ることにより,大きさの揃ったV_2O_5微粒子を合成しうる条件を確立した.続いて,得られたV_2O_5微粒子を自己組織化集積させることによりV_2O_5コロイド結晶を構築し,還元性雰囲気下で熱処理することにより,70℃近傍で金属-絶縁体転移を起こす物質であるVO_2からなるコロイド結晶を得ることに成功した.

Research Products

• [Journal Article] Preparation of Monodisperse and Spherical Rutile VO_2 Fine Particles (2009)
  • Author(s): Shinpei Yamamoto, Naoko Kasai and Yuichi Shimakawa
  • Journal Title: Chemistry of Materials 21 Pages: 198-200
• [Journal Article] Preparation of Monodisperse and Spherical Rutile V02 Fine Particles (2009)
  • Author(s): Shinpei Yamamoto, Naoko Kasai and Yuichi Shimakawa
  • Journal Title: Chemistry of Materials 21 Pages: 198-200
  • Peer Reviewed
• [Journal Article] Synthesis of Monodisperse-and-Spherical V_2O_5 Fine Particles and Their Self-Assembling (in Japanese) (2008)
  • Author(s): Naoko Kasai, Shinpei Yamamoto and Yuichi Shimakawa
  • Journal Title: Journal of the Japan Society of Powder and Powder Metallurgy 55 Pages: 637-642
• [Journal Article] Synthesis of Monodisperse-and-Spherical V205 Fine Particles and Their Self-Assembling. (2008)
  • Author(s): Naoko Kasai, Shinpei Yamamoto and Yuichi Shimakawa
  • Journal Title: Journal of the Japan Society of Powder and Powder Metallurgy 55 Pages: 637-642
  • Peer Reviewed
• [Presentation] V2O5およびVO2コロイド粒子の合成と物性 (2008)
  • Author(s): 山本真平
  • Organizer: 粉体粉末冶金協会春季講演大会
  • Year and Date: 2008-05-27
• [Presentation] V205およびV02コロイド粒子の合成と物性 (2008)
  • Author(s): 山本真平
  • Organizer: 粉体粉末冶金協会春季講演大会
  • Place of Presentation: 東京
  • Year and Date: 2008-05-27
• [Presentation] 五酸化バナジウム微粒子の合成および自己組織化 (2007)
  • Author(s): 笠井奈緒子
  • Organizer: 粉体粉末冶金協会秋季大会
  • Place of Presentation: 京都
  • Year and Date: 2007-11-20
• [Presentation] 五酸化バナジウム微粒子の合成および自己組織化 (2007)
  • Author(s): 笠井奈緒子
  • Organizer: 応用物理学会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-06