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2008 Fiscal Year Final Research Report

Characterization of Nanostructured Semiconductors with Different Morphologies and Application to Gas Sensors

Research Project

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Project/Area Number 18510095
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Nanomaterials/Nanobioscience
Research InstitutionThe University of Electro-Communications

Principal Investigator

SHEN Qing  The University of Electro-Communications, 電気通信学部, 助教 (50282926)

Project Period (FY) 2006 – 2009
Keywordsナノ材料評価 / ナノ構造半導体 / 表面形態 / 熱拡散率 / ガスセンサー
Research Abstract

本研究では、(1)周期的なナノ構造を有するポーラスシリコン、(2)ナノ構造を有する酸化物半導体(TiO_2)薄膜を対象として、その熱伝導率を非接触的で測定できる方法(透過型光音響法と改良型過渡回折格子法)を確立した。ナノ構造の表面形態の違いや表面に吸着した分子や半導体量子ドットおよび金属ナノ粒子により熱拡散率が顕著に変化することを見出した。従来のガス吸着による電気抵抗変化の測定法の代わりに、ガス分子吸着による熱拡散率の変化を利用するガスセンシングへの応用に関する基礎研究を行った。

  • Research Products

    (28 results)

All 2009 2008 2007 2006

All Journal Article (17 results) (of which Peer Reviewed: 17 results) Presentation (11 results)

  • [Journal Article] Electric Characteristics of Li_2O- Doped TiO_2 Nanocrystalline Film and its Application to Dye-Sensitized Solar Cels2009

    • Author(s)
      M. Nada, T. Gonda, Q. Shen, H. Shimada, T. Toyoda, and N. Kobayashi
    • Journal Title

      Jpn. J. Appl. Phys Vol.48

      Pages: 0255505-1-4

    • Peer Reviewed
  • [Journal Article] Photoacoustic Spectra of Au Quantum Dots Adsorbed on Nanaostructured TiO_2 Electrodes together with the Photoelectrochem-ical Current Characteristics2009

    • Author(s)
      T. Toyoda, S. Tsugawa, and Q. Shen
    • Journal Title

      J. Appl. Phys Vol.105

      Pages: 034314-1-5

    • Peer Reviewed
  • [Journal Article] Terahertz Reflection Response Measurement Using a Phonon Polariton Wave2009

    • Author(s)
      H. Inoue, K. Katayama, Q. Shen, T. Toyoda, and K. A. Nelson
    • Journal Title

      J. Appl. Phys Vol.105

      Pages: 054902-1-4

    • Peer Reviewed
  • [Journal Article] Effect of ZnS Coating on the Photovoltaic Properties of CdSe Quantum Dot Sensitized Solar Cells2008

    • Author(s)
      Q. Shen, J. Kobayashi, L. J. Diguna, and T.Toyoda
    • Journal Title

      J. Appl. Phys Vol.103

      Pages: 084304-1

    • Peer Reviewed
  • [Journal Article] Characterization of Electron Transferfrom CdSe Quantum Dots to Nanostructured TiO2 Electrode Using a Near Field Heterodyne Transient Grating2008

    • Author(s)
      Q. Shen, K. Katayama, T. Sawada, and T. Toyoda
    • Journal Title

      Thin Solid Films Vol.516

      Pages: 5927

    • Peer Reviewed
  • [Journal Article] Generation and detection of Tunable Phonon Polaritons Using a Single Transmission Grating2008

    • Author(s)
      K. Katayama, H. Inoue, H. Sugiya, Q. Shen, T. Toyoda, and K. Nelson
    • Journal Title

      Appl. Phys. Lett Vol.92

      Pages: 031906

    • Peer Reviewed
  • [Journal Article] Phonon Polariton Generation and Detection Using Near Field Heterodyne Transient Grating Method2007

    • Author(s)
      K. Katayama, Q. Shen, T. Toyoda, and K. Nelson
    • Journal Title

      Appl. Phys. Lett Vol.90

      Pages: 171117

    • Peer Reviewed
  • [Journal Article] Optical Absorption and Ultrafast Carrier Dynamics Characterization of CdSe Quantum Dots Deposited on Different Morphologies of Nanostructured TiO_2 Films2007

    • Author(s)
      L.J. Diguna, Q. Shen. A. Sato, K. Katayama, T. Sawada, and T. Toyoda
    • Journal Title

      Mater. Sci. Eng C Vol.27

      Pages: 1514-1520

    • Peer Reviewed
  • [Journal Article] Crystal Growth of CdSe Quantum Dots Adsorbed on Nano-particle, Inverse Opal, and Nanotube TiO_2 Photoelectrodes Characterized by Photoacoustic Spectroscopy2007

    • Author(s)
      T. Toyoda, T. Uehara, R. Suganuma, S. Tamura, A. Sato, K. Yamamoto, Q. Shen, and N. Kobayashi
    • Journal Title

      Jpn. J. Appl. Phys Vol.46

      Pages: 4616-4621

    • Peer Reviewed
  • [Journal Article] High Efficiency of CdSe Quantum Dot Sensitized TiO_2 Inverse Opal Solar Cells2007

    • Author(s)
      L.J. Diguna, Q. Shen, J. Kobayashi, and T.Toyoda
    • Journal Title

      Appl. Phys. Lett Vol.91

      Pages: 023116

    • Peer Reviewed
  • [Journal Article] Optical Absorption, Photosensitization, and Ultrafast Carrier Dynamic Investigations of CdSe Quantum Dots Grafted onto Nanostructured SnO_2 Electrode and Fluorine Doped Tin Oxide(FTO)Glass2007

    • Author(s)
      Q. Shen, M. Yanai, K. Katayama, T. Sawada,and T. Toyoda
    • Journal Title

      Chem. Phys. Lett Vol.442

      Pages: 89-96

    • Peer Reviewed
  • [Journal Article] The Influence of Chemical Post Etching and UV Irradiation on the Optical Absorption and Thermal Diffusivity of Porous Silicon Studied by Photoacoustic Technique2006

    • Author(s)
      Q. Shen, M. Inoguchi, T. Toyoda
    • Journal Title

      Thin Solid Films Vol.499

      Pages: 161-167

    • Peer Reviewed
  • [Journal Article] Photoacoustic and Photoelectrochemical Characterization of CdSe Sensitized TiO2 Electrodes Composed of Nanotubes and Nanowires2006

    • Author(s)
      Q. Shen, T. Sato, M. Hashimoto, C.C.Chen, T. Toyoda
    • Journal Title

      Thin Solid Films Vol.499

      Pages: 299-305

    • Peer Reviewed
  • [Journal Article] Photoexcited Hole Dynamics of TiO_2 Nanocrystalline Films characterized using a Lens Free Heterodyne Detection Transient Grating Technique2006

    • Author(s)
      Q. Shen, K. Katayama, T. Sawada, M.Yamaguchi, Y. Kumagai, and T. Toyoda
    • Journal Title

      Chem. Phys. Lett 419

      Pages: 464-468

    • Peer Reviewed
  • [Journal Article] Optical absorption, photoelectrochemical, and ultrafast carrierdynamic investigations of TiO_2 electrodes composed of nanotubes and nanowires sensitized with CdSe quantum dots2006

    • Author(s)
      Q. Shen, K. Katayama, T. Sawada, M.Yamaguchi and T. Toyoda
    • Journal Title

      Jpn. J. Appl. Phys Vol.45

      Pages: 5569-5574

    • Peer Reviewed
  • [Journal Article] Photoacoustic and photoelectrochemical characterization of inverse opal TiO_2 sensitized with CdSe quantum dots2006

    • Author(s)
      L.J. Diguna, M. Murakami, A. Sato, Y. Kumagai, T. Ishihara, N. Kobayashi, Q. Shen and T. Toyoda
    • Journal Title

      Jpn. J. Appl. Phys Vol.45

      Pages: 5563-5568

    • Peer Reviewed
  • [Journal Article] Carrier Dynamics in Porous Silicon Studied with a Near-Field Heterodyne Transient Grating Method2006

    • Author(s)
      M. Yamaguchi, K. Katayama, Q. Shen, T. Toyoda and T. Sawada
    • Journal Title

      Chem. Phys. Lett Vol.427

      Pages: 192-196

    • Peer Reviewed
  • [Presentation] 光音響分光法によるCdSe量子ドットを吸着したナノ結晶Siの熱拡散率評価2008

    • Author(s)
      小鹿倉淳、沈青、豊田太郎
    • Organizer
      第29回超音波エレクトロニクスシンポジウム
    • Place of Presentation
      仙台
    • Year and Date
      2008-11-11
  • [Presentation] 光音響分光法によるCdSe量子ドットを吸着したナノ結晶Siの熱拡散率評価2008

    • Author(s)
      小鹿倉淳、沈青、豊田太郎
    • Organizer
      第29回日本熱物性シンポジウム
    • Place of Presentation
      東京
    • Year and Date
      2008-10-08
  • [Presentation] ナノ構造TiO_2電極に吸着したAu量子ドットの光音響スペクトルと過渡応答評価2008

    • Author(s)
      沈青、片山健二、澤田嗣郎、豊田太郎
    • Organizer
      第29回日本熱物性シンポジウム
    • Place of Presentation
      東京
    • Year and Date
      2008-10-08
  • [Presentation] CdSe量子ドットを吸着したTiO_2逆オパール電極の光音響スペクトルと反射特性2008

    • Author(s)
      Lina J. Diguna, 鮎沢康正、沈青、豊田太郎
    • Organizer
      第29回日本熱物性シンポジウム
    • Place of Presentation
      東京
    • Year and Date
      2008-10-08
  • [Presentation] 光音響分光法によるCdSe量子ドットを吸着したポーラスシリコンの熱物性評価2008

    • Author(s)
      小鹿倉淳、沈青、豊田太郎
    • Organizer
      超音波学会
    • Place of Presentation
      東京
    • Year and Date
      2008-04-25
  • [Presentation] Effects of surface modification on photovoltaic properties of CdSe quantum dot-sensitized TiO_2 inverse opal solar cells2007

    • Author(s)
      L. J. Diguna, Q. Shen, J. Kobayashi and T.Toyoda
    • Organizer
      Abstracts of the International PVSEC-17
    • Place of Presentation
      Fukuoka(136-137)
    • Year and Date
      2007-12-03
  • [Presentation] Dependence of the photovoltaic properties of CdSe quantum dot-sensitized solar cells on the thickness of TiO_2 electrodes2007

    • Author(s)
      T. Toyoda, T. Uehada, L. J. Diguna and Q. Shen
    • Organizer
      Abstracts of the International PVSEC-17
    • Place of Presentation
      Fukuoka(1181-1182)
    • Year and Date
      2007-12-03
  • [Presentation] Characterization of carrier dynamics in semiconductor nanomaterials using near-field heterodyne transient grating method2007

    • Author(s)
      Q. Shen, K. Katayama, T. Sawada and T. Toyoda
    • Organizer
      Abstracts of the 2007 Internatinal Microprocesses and Nanotechnology Conference
    • Place of Presentation
      Kyoto, invited
    • Year and Date
      2007-11-05
  • [Presentation] 光音響分光法を用いたポーラスシリコンの熱物性評価-その2-2007

    • Author(s)
      加藤侑志、沈青、豊田太郎
    • Organizer
      第54回応用物理学関係連合講演会講演予稿集
    • Place of Presentation
      東京(1522)
    • Year and Date
      2007-03-27
  • [Presentation] CdSe量子ドット増感したナノ構造TiO_2電極における光電変換効率の評価2007

    • Author(s)
      沈青、小林純也、Lina J Diguna、豊田太郎
    • Organizer
      第54回応用物理学関係連合講演会講演予稿集
    • Place of Presentation
      東京(690)
    • Year and Date
      2007-03-27
  • [Presentation] ZnSを保護膜としたCdS量子ドット増感型太陽電池の光電変換特性2007

    • Author(s)
      佐藤彰、小林純也、沈青、豊田太郎
    • Organizer
      第54回応用物理学関係連合講演会講演予稿集
    • Place of Presentation
      東京(690)
    • Year and Date
      2007-03-27

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Published: 2010-06-10   Modified: 2016-04-21  

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