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回折および分光手法による酸化物表面での局在量子構造解析

Research Project

Project/Area Number 12130201
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionTohoku University

Principal Investigator

松原 英一郎 (松原 一郎)  東北大学, 金属材料研究所, 教授 (90173864)

Co-Investigator(Kenkyū-buntansha) 村松 淳司  東北大学, 多元物質科学研究所, 教授 (40210059)
佐藤 修彰  東北大学, 多元物質科学研究所, 助教授 (70154078)
中嶋 一雄  東北大学, 金属材料研究所, 教授 (80311554)
桜井 雅樹 (櫻井 雅樹)  東北大学, 金属材料研究所, 助手 (80235225)
林 好一  東北大学, 金属材料研究所, 助教授 (20283632)
篠田 弘造  東北大学, 工学研究科, 助手 (10311549)
Project Period (FY) 2000 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥79,000,000 (Direct Cost: ¥79,000,000)
Fiscal Year 2004: ¥6,400,000 (Direct Cost: ¥6,400,000)
Fiscal Year 2003: ¥15,900,000 (Direct Cost: ¥15,900,000)
Fiscal Year 2002: ¥32,000,000 (Direct Cost: ¥32,000,000)
Fiscal Year 2001: ¥24,700,000 (Direct Cost: ¥24,700,000)
Keywords構造解析 / チタン酸化物 / 光触媒材料 / 蛍光X線ホログラフィー / 放射光 / 薄膜 / 局所構造評価 / 光触媒 / 部分硫化 / 局所格子歪み / 局在量子構造 / 元素選択性 / XANES / X線異常散乱 / 蛍光X線ホログラム / 光触媒物質 / 半導体 / 亜鉛酸化物 / シリコンゲルマニウム / 硫化物 / X線回折法 / フラーレン / カーボンナノチューブ
Research Abstract

放射光やX線による局所構造評価技術を利用し、理論計算グループ(A01班)および分析電子顕微鏡評価グループ(A02班)など他班と連携し、環境とエネルギーをキーワードに、局在量子構造制御による物質創製を目指して、(1)チタン酸化物系光触媒物質の高効率化、(2)高効率太陽電池用SiGe多結晶の創製の2つの課題に取り組んだ。また、新しい局所構造評価技術として、(3)蛍光X線ホログラフィー法の高精度化についても研究を展開し,以下のような主要研究成果を挙げた。
1.成膜した非晶質チタン酸化物薄膜を結晶化することによって、高い光触媒活性を示す準安定なアナターゼ相を優先的に成長できることを、アモルファス相からアナターゼ相とルチル相が形成する際のそれぞれのエネルギー変化を見積もることで予測した。これに基づいて実際にレーザーアブレーション法によって非晶質チタン酸化物薄膜を成膜し、基材の材質には無関係にアナターゼ単相の成膜ができることを示した。
2.チタン酸化物薄膜やペロブスカイト型チタン複合酸化物粉末を部分硫化することによって、可視光側に広い吸収を示すようになり、高効率な光触媒能が実現できることを計算から予測し、これらの物質の製造にも成功した。
3.少量のGeの組成分布を導入して、吸収係数の増加と吸収可能波長域の拡大を実現し、屈折率分布による光散乱により光路長の増加を実現することで光電流の増加による多結晶Si太陽電池の変換効率を改善できることを予測し、実用キャスト成長法を用いて製造したSiGeバルク多結晶を用いて、効率改善を実証した。
4.新しい解析アルゴリズムを開発し、新構造解析技術である蛍光X線ホログラフィーの定量化の問題の解決に目処をつけることができた。

Report

(5 results)
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (38 results)

All 2005 2004 Other

All Journal Article (12 results) Book (1 results) Patent(Industrial Property Rights) (1 results) Publications (24 results)

  • [Journal Article] Effects of vicinal steps on the island growth and orientation of epitaxially grown perylene-3.4.9.10-tetracarboxylic dianhydride (PTCDA) thin film crystals on a hydrogen-terminated Si(111) substrate2005

    • Author(s)
      Sazaki G et al.
    • Journal Title

      J.Crystal Growth 273

      Pages: 594-602

    • Related Report
      2004 Annual Research Report
  • [Journal Article] On the origin of improved conversion efficiency of solar cells based on SiGe with compositional distribution2005

    • Author(s)
      N.Usami et al.
    • Journal Title

      Jpn.J.Appl.Phys. 44

      Pages: 857-860

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Growth and properties of SiGe multicrystals with microscopic compositional distribution and their applications for high efficiency solar cells2005

    • Author(s)
      K.Nakajima et al.
    • Journal Title

      J.Crystal Growth (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Structural Properties of Directionally Grown Polycrystalline SiGe for Solar Cells2005

    • Author(s)
      K.Fujiwara et al.
    • Journal Title

      J.Crystal Growth (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] X-ray absorption fine-structure study on the fine structure of lutetium segregated at grain boundaries in fine-grained polycrystalline alumina2004

    • Author(s)
      Yoshida H et al.
    • Journal Title

      Philosophical Magazine 84(9)

      Pages: 865-876

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Development and application of laboratory X-ray fluorescence holography equipment2004

    • Author(s)
      Takahashi Y et al.
    • Journal Title

      Powder Diffraction 19(1)

      Pages: 77-80

    • Related Report
      2004 Annual Research Report
  • [Journal Article] X-ray Fluorescence Holography Study on Si1 -xGex Single Crystal2004

    • Author(s)
      Hayashi K et al.
    • Journal Title

      Materials Transactions 45(7)

      Pages: 1994-1997

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Epitaxial relation and island growth of perylene-3.4.9.10-tetracarboxylic dianhydride (PTCDA) thin film crystals on a hydrogen-terminated Si(111) substrate2004

    • Author(s)
      Sazaki G et al.
    • Journal Title

      Journal of Crystal Growth 264(1-4)

      Pages: 196-201

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Electronic States of Sulfur Doped TiO_2 by First Principles Calculations2004

    • Author(s)
      Yamamoto T et al.
    • Journal Title

      Materials Transactions 45(7)

      Pages: 1987-1990

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Intermediate-range order in glassy GexSe1-x around the stiffness transition composition2004

    • Author(s)
      Wang Y et al.
    • Journal Title

      Journal of Non-Crystalline Solids 337(1)

      Pages: 54-61

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 最先端X線技術:蛍光X線ホログラフィー法によるエピタキシャル薄膜の構造評価2004

    • Author(s)
      高橋幸生ら
    • Journal Title

      金属 74(4)

      Pages: 411-417

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Intermediate-range order in glassy GexSe1-x around the stiffness transition composition2004

    • Author(s)
      Wang Y et al.
    • Journal Title

      Journal of Non-Crystalline Solids 377(1)

      Pages: 54-61

    • Related Report
      2004 Annual Research Report
  • [Book] X線回折による構造解析-非晶質系,EXAFSによる局所構造解析-非晶質物質のEXAFSおよびX線回折による構造解析の比較,蛍光X線ホログラフィー放射光科学入門(渡辺誠,佐藤繁編)2004

    • Author(s)
      松原英一郎
    • Total Pages
      15
    • Publisher
      東北大学出版会
    • Related Report
      2004 Annual Research Report
  • [Patent(Industrial Property Rights)] 太陽電池およびその製造2005

    • Inventor(s)
      宇佐美 徳隆, 中嶋 一雄, 藤原 航三
    • Industrial Property Rights Holder
      東北大学
    • Industrial Property Number
      2005-044025
    • Filing Date
      2005-02-21
    • Related Report
      2004 Annual Research Report
  • [Publications] Takahashi Y, Hayashi K, Matsubara E, et al.: "A new technique for study of local atomic environment in artificially grown magnetic thin film"Scripta Materialia. 48. 975-979 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hayashi K, Takahashi Y, Matsubara E, et al.: "3D atomic imaging of SiGe system by X-ray fluorescence holography"Journal of Material Science : Materials in Electronics. 14. 459-462 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Takahashi, K.Hayashi, E.Matsubara: "Complex x-ray holography"Physical Review B. 68. 052103-1-052103-4 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Alguno A, Usami N, Ujihara T, et al.: "Enhanced quantum efficiency of solar cells with self-assembled Ge dots stacked in multilayer structure"Appl.Phys.Lett.. 83. 1258-1260 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Usami N, Ichitsubo T, Ujihara T, et al.: "Influence of the elastic strain on the band structure of ellipsoidal SiGe coherently embedded in Si matrix"J.Appl.Phys.. 94. 916-920 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nakamura T, Arata M, Takahashi H, et al.: "Partial sulfurization of laser-ablated titanium oxide film for the improvement in photocatalytic property"Materials Transactions. 44(4). 685-687 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.Sato, M.Arata, T.Fujino: "Formation of UO_2 Thin Film by Laser Ablation and Its Electrical Properties"J. Nuclear Science and Technology. Supp.3. 660-663 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Takahashi, E.Matsubara, et al.: "Fullerene and Sulfur Compounds"Materials Transactions. 43・7. 1530-1532 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Sato, H.Takahashi, E.Matsubara, A.Muramatsu: "Local Atomic Structure and Catalytic Activities in Electrodeposited Mo-Ni Alloys"Materials Transactions. 43・7. 1525-1529 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] N.Sato et al.: "Preparation of a TiO_2 Film Coated Si Device for Photo-Decomposition of Water by CVD Method Using Ti(OPri)_4"Materials Transactions. 43・7. 1533-1536 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Hayashi, Y.Takahashi, E.Matsubara: "Refinement of X-ray fluorescence holography for determination of local atomic environment"Materials Transactions. 43・7. 1464-1468 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Hayashi, Y.Takahashi, E.Matsubara, et al.: "X-ray fluorescence hologram data collection with a cooled avalanche photodiode"Physics Research B. 196. 180-185 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Y.Azuma, et al.: "Growth of SiGe bulk crystal with uniform composition by directly controlling the growth temperature at the crystal-melt interface using in-situ monitoring system"J. Crystal Growth. 224. 204-211 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] N.Sato et al.: "Formation of UO_2 thin film by laser ablation and its electrical properties"J. Nucl. Sci. Tech.. (印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] E.Matsuara et al.: "Environmental structural studies in amorphous and quasicrystalline Zr_<70>Al_6Ni_<10>Pt_<14> alloys"Scripta mater.. 44(8-9). 204-211 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 林好一他: "蛍光X線ホログラフィー技術の現状とその将来的展開"まてりあ. 40(9). 801-807 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Takahashi et al.: "Synthesis of fullerenes/sulfur compounds"Proc. 4^<th> Pacific Rim International Conf. on Advanced Materials and Processing (PRICM4). 647-650 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Takahashi et al.: "Preparation of C60 and sulfur compound for development of new photocatalyses"Proc. 4^<th> Pacific Rim International Conf. on Advanced Materials and Processimr (PRICM4). 627-630 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 松原英一郎: "X線回折による酸化物ガラスの局所構造"まてりあ. 39. 575-579 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] E.Matsubara et al.: "Anomalous X-ray Scattering Study of Amorphous Fe_<70>M_<10>B_<20>"Mater.Trans.JIM 41 (2000) 1379-1384. 41. 1379-1384 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Wang et al.: "Synthesis of Pb TiS_3 in sulfur melt"Shigen-to-Sozai. 116. 703-710 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Wang et al.: "Effect of halide addition on the syntheses of PbTiS_3 and Ba_x TiS_y in sulfur melt"J.Alloys Compd.. 311. 214-223 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Azuma et al.: "Growth of SiGe bulk crystal with uniform composition by directly controlling the growth temperature at the crystal-melt interface using in-situ monitoring system"J.Cryst.Growth,. (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.Usami et al.: "SiGe bulk crystal as a lattice-matched substrate to GaAs for solar cell applications"Appl.Phys.Lett.. 77. 5253-5328 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2001-04-01   Modified: 2018-03-28  

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