Synthesis of heterostructured metal sulfide semiconductor nanoparticles for visible light hydrogen evolution

• Project/Area Number: 21750132
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Functional materials chemistry
• Research Institution: University of Tsukuba
• Principal Investigator: KANEHARA Masayuki University of Tsukuba, 大学院・数理物質科学研究科, 助教 (40375415)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2009: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
• Keywords: コロイド / 超微粒子 / 半導体ナノ粒子 / 電荷分離 / 異方性相分離ナノ粒子

Research Abstract

Here we report the synthesis of conducting indium tin oxide (ITO) nanoparticles (NPs) and their SPR properties, where SPR peaks of the ITO NPs can be easily tuned by changing the concentration of Sn doping from 3 to 30 mol %. The shortest SPR wavelength of 1618 nm in 10 %Sn-doped ITO NPs may reflect the highest electron carrier density in the ITO NPs and represents the first example of well-defined SPR tunable conductive metal oxide NPs in the NIR region. The controllable SPR frequencies of metal oxides may offer a novel approach for noble metal-free SPR applications.

Research Products

• [Journal Article] Drastic Structural Transformation of Cadmium Chalcogenide Nanoparticles Using Chloride Ions and Surfactants (2010)
  • Author(s): M.Saruyama, M.Kanehara, T.Teranishi
  • Journal Title: J.Am.Chem.Soc. 132 Pages: 3280-3282
  • Peer Reviewed
• [Journal Article] Photocatalytic Overall Water Splitting Promoted by Two Different Cocatalysts for Hydrogen and Oxygen Evolution under Visible Light (2010)
  • Author(s): K.Maeda, A.Xiong, T.Yoshinaga, T.Ikeda, N.Sakamoto, T.Hisatomi, M.Takashima, D.Lu, M.Kanehara, T.Setoyama, T.Teranishi, K.Domen
  • Journal Title: Angew.Chem.Int.Ed. 49 Pages: 4096-4099
  • Peer Reviewed
• [Journal Article] Drastic Structural Transformation of Cadmium Chalcogenide Nanoparticles Using Chloride Ions and Surfactants (2010)
  • Author(s): M.Saruyama, M.Kanehara, T.Teranishi
  • Journal Title: J.Am.Chem.Soc. Volume: 132 Pages: 3280-3282
  • Peer Reviewed
• [Journal Article] Highly Dispersed Noble-Metal/Chromia(Core/Shell)Nanoparticles as Efficient Hydrogen Evolution Promoters for Photocatalytic Overall Water Splitting under Visible Light (2009)
  • Author(s): N.Sakamoto, H.Ohtsuka, T.Ikeda, K.Maeda, D.Lu, M.Kanehara, K.Teramura, T.Teranishi, K.Domen
  • Journal Title: Nanoscale 1 Pages: 106-109
  • Peer Reviewed
• [Journal Article] Indium Tin Oxide Nanoparticles with Compositionally Tunable Surface Plasmon Resonance Frequencies in the Near IR Region (2009)
  • Author(s): M.Kanehara, H.Koike, T.Yoshinaga, T.Teranishi
  • Journal Title: J.Am.Chem.Soc. 131 Pages: 17736-17737
  • Peer Reviewed
• [Presentation] 電場増強を誘起する光機能性金属酸化物ナノ粒子,高感度表面・界面分光部会 (2010)
  • Author(s): 金原正幸、古部昭広、吉永泰三、寺西利治
  • Organizer: 第3回シンポジウム
  • Place of Presentation: 産業技術総合研究所つくばセンター
  • Year and Date: 2010-12-03
• [Presentation] 電場増強を誘起する光機能性金属酸化物ナノ粒子 (2010)
  • Author(s): 金原正幸、古部昭広、吉永泰三、寺西利治
  • Organizer: 高感度表面・界面分光部会第3回シンポジウム
  • Place of Presentation: 産業技術総合研究所つくばセンター(招待講演)
  • Year and Date: 2010-12-03
• [Presentation] 透明導電性酸化物ITOナノ粒子の近赤外SPR制御 (2010)
  • Author(s): 金原正幸・小池勇人・吉永泰三・寺西利治
  • Organizer: 日本化学会第90春季年会
  • Place of Presentation: 近畿大学本部キャンパス
  • Year and Date: 2010-03-29
• [Presentation] π接合導電性金属ナノ粒子の電子物性 (2009)
  • Author(s): 金原正幸
  • Organizer: 第5回SORST横断デバイス物性研究会
  • Place of Presentation: 大阪大学 コンベンションセンター
  • Year and Date: 2009-10-28
• [Book] Nano-Organization of Inorganic Nanoparticles" In Bottom-up Nanofabrication : Supramolecules, Self-Assemblies, and Organized Films (2009)
  • Author(s): M.Kanehara, T.Teranishi
  • Total Pages: 35
  • Publisher: American Scientific Publishers
• [Remarks] ホームページ等
  • URL: http://www.chem.tsukuba.ac.jp/teranisi/
• [Patent(Industrial Property Rights)] ナノインク組成物 (2010)
  • Inventor(s): 金原正幸
  • Industrial Property Rights Holder: 金原正幸
  • Filing Date: 2010-03-15