1989 Fiscal Year Annual Research Report

光励起された半導体ー溶液界面を用いる新しいレドックス反応とパタ-ン形成

Research Project

Project/Area Number	01850182
Research Category	Grant-in-Aid for Developmental Scientific Research
Research Institution	The University of Tokyo
Principal Investigator	藤嶋昭東京大学, 工学部, 教授 (30078307)
Co-Investigator(Kenkyū-buntansha)	石田裕日本ペイント(株), 技術センター, 課長加藤民彦名古屋工業大学, 工学部, 講師 (90024257) 小早川紘一神奈川大学, 工学部, 助手 (40078332) 佐藤祐一神奈川大学, 工学部, 助教授 (20201535) 馬場凉東京大学, 工学部, 助手 (70198951)
Keywords	半導体電極 / 光励起プロセス / パタ-ン形成 / 走査トンネル顕微鏡 / フォトクロミズム / エレクトロクロミズム
Research Abstract	本研究は光励起された半導体ー溶液界面を新しい実用的な応用に結びつけることを目標としており、そのための出発点として今年度は、以下のような結果を得ることができた。 1.溶液中でも動作可能なSTMの試作と半導体ー溶液界面の観測電位制御した半導体ー溶液界面を原子オ-ダ-の分解能でin situに測定可能な走査トンネル顕微鏡(STM)の設計、試作に成功した。また、これを用いて二酸化チタン電極表面に吸着したフェノ-ル分子の観測や、二硫化モリブデン電極の光溶解反応の超微小領域その場観測に成功した。これにより、光電気化学プロセスを原子オ-ダ-で観測する手法が確立した。 2.無機半導体薄膜上への有機物複合化パタ-ン形成半導体の位置選択的な光励起プロセスを用いて、ポリピロ-ルなどの導電性高分子や絶縁性樹脂パタ-ンを二酸化チタンや酸化亜鉛などの同一半導体基板上に自由に複合化して析出させることができた。また、絶縁性樹脂に各種顔料を混ぜて同様のプロセスにより光成膜することにも成功し、液晶表示素子用のカラ-フィルタ-作成にこの手法が利用できる可能性を示した。ポリピロ-ルのエレクトロクロミズムと組み合わせることにより、こうした有機複合材料が新しい表示材料としても使える見通しが立った。 3.WO_3やMoO_3などのフォトエレクトロクロミズムの基礎研究極めて希薄なエタノ-ルや蟻酸の蒸気存在下でこれらの薄膜のフォトクロミズム反応が起こることが明らかとなり、しかもMoO_3とWO_3でその挙動が異なることから、これらの組合せにより超高感度ガスセンサ-を構築できる可能性が示された。

Research Products
(28 results)

All Other

All Publications (28 results)

[Publications] S.Yoshihara: "In Situ Monitoring of the Surface Structures of Copper Plated Metals by using PAS Technique" Electrochimica Acta. 33. 1685-1688 (1988)
[Publications] A.Aruchamy: "Photoelectrochemical Study of the Effect of Inhibitor on the Passivation of Copper in Sodium Hydoroxide Aqueous Electrolyte" J.Electroanal.Chem.244. 333-338 (1988)
[Publications] C.M.Braun: "Charge Fields in Bi_<12>GeO_<20> and Dynamic Flat-band Potential" J.Appl.Phys.63. 5756-5760 (1888)
[Publications] A.Manivannan: "Electroluminescence at the SiC/Electrolyte Interface" J.Luminescence. 42. 43-47 (1988)
[Publications] 小早川紘一: "酸化チタン(IV)の光触媒活性" 日本化学会誌. 1175-1181 (1988)
[Publications] M.Okano: "Photoelectrochemical Polymerization of Pyrrole on ZnO and Its Application of Conducting Pattern Generation" J.Electrochem.Sci.135. 1641-1645 (1988)
[Publications] S.Yamagata: "Photocatalytic Oxidation of Alcohols on TiO_2" Bull.Chem.Soc.Japan. 61. 3429-3434 (1988)
[Publications] 吉原佐知雄: "光音響分光による銅めっき過程のin situ観測" 金属表面技術. 39. 527-531 (1988)
[Publications] S.Yoshihara: "Photoacoustic In Situ Measurement of Quantum Efficiency for Photoelectrochemical Evolution of Hydrogen on P-Indium Phosphide" Mat.Res.Bull.23. 759-763 (1988)
[Publications] K.Itoh: "Highly Sensitive Flash Photolysis with Optical Waveguides:Photodeposition of Ag onto Particulate TiO_2 from Solution" J.Am.Chem.Soc.110. 6267-6269 (1988)
[Publications] 吉原佐知雄: "光励起された白金担持P型InPの水素電極反応における電解分解率" 日本化学会誌. 1664-1669 (1988)
[Publications] A.Manivannan: "Investigation of Current Doubling Reactions at SiC/Aqueous Electrolyte Junction in Relation to the Band Energetics" Ber.Bunsenges.Phys.Chem.92. 1522-1528 (1988)
[Publications] K.Itoh: "An Application of Optical Waveguides to Electrochemistry:Constuction of Optical Waveguide Electrodes" J.Phys.Chem.92. 7043-7047 (1988)
[Publications] R.Cai: "Photocatalytic Effect on Tumor Cells" Photomedicine and Photobiology. 253-255 (1989)
[Publications] S.Yamagata: "Photocatalytic Decomposition of 2-Ethoxyethanol on Titanium Dioxide" Bull.Chem.Soc.Japan. 62. 1004-1010 (1989)
[Publications] T.Kato: "Photoelectrochemical Formation of Phenol from Benzene on ZnO" Kagaku Kaishi. 784-788 (1989)
[Publications] A.Aruchamy: "Photoresponse of Oxide Layers on Copper in Aqueous Electrolytes Containing Corrosion Inhivitors" J.Electroanal.Chem.266. 397-408 (1989)
[Publications] E.Kikuchi: "Mechanism of Stabilization of ZnO Photoanode in High pH Solutions" Bull.Chem.Soc.Japan. 62. 2789-2792 (1989)
[Publications] K.Sakamaki: "A Simple and Rugged Home-Built Scanning Tunneling Microscope for Operation in Both Air and liquied" Bull.Chem.Soc.Japan. 62. 2890-2896 (1989)
[Publications] T.Amemiya: "Spectroscopic and Electrochemical Behavior of Polypyrrole Films Incorporation Methylene Blue,and Their Enhancement in Electrochromism" Ber.Bunsenges.Phys.Chem.93. 682-689 (1989)
[Publications] K.Sakamaki: "Imaging the Phenol Molecule Adsorbed on TiO_2 by Scanning Tunneling Micorscopy" Surface Sci.219. 531-536 (1989)
[Publications] S.Yamagata: "Homogeneous and Heterogeneous Photocatalysis-Polymerization of Cyclohexene Oxide Catalyzed by Ti(OR),and TiO_2" Denki Kagaku. 57. 436-437 (1989)
[Publications] K.Kobayakawa: "Photodecomposition of Kraft Lignin Catalyzed by Titanium Dioxide" Bull.Chem.Sco.Japan. 62. 3433-3436 (1989)
[Publications] A.Aruchamy: "Photoanodic Behaviour of Cu_2O Corrosion Layers on Copper Electrdes" J.Electroanal.Chem.273. 125-136 (1989)
[Publications] T.Kato: "Photocatalytic Formation of Phenol by using Hydrophobic TiO_2 Powders Located at Interface Between Benzene and Water" Denki Kagaku. 57. 1155-1158 (1989)
[Publications] K.Kobayakawa: "Photoanodic Dissolution of n-Type Cu_2O Film" Denki Kagaku. 57. 1217-1218 (1989)
[Publications] R.Baba: "Patten Formation by the Photoelectrodeposition Cating on Illuminated Semiconductor Films" MRS Int'1.Mtg.on Adv.Mats.12. 167-173 (1989)
[Publications] Z.F.Liu: "Observation of Tip-Induced Ordered Molecular Arrangement on Graphite Surfaces by Scanning Tunneling Microscopy" Chem.Lett.17-20 (1989)

1989 Fiscal Year Annual Research Report

光励起された半導体ー溶液界面を用いる新しいレドックス反応とパタ-ン形成

Principal Investigator

藤嶋 昭 東京大学, 工学部, 教授 (30078307)

Research Products

[Publications] S.Yoshihara: "In Situ Monitoring of the Surface Structures of Copper Plated Metals by using PAS Technique" Electrochimica Acta. 33. 1685-1688 (1988)

[Publications] A.Aruchamy: "Photoelectrochemical Study of the Effect of Inhibitor on the Passivation of Copper in Sodium Hydoroxide Aqueous Electrolyte" J.Electroanal.Chem.244. 333-338 (1988)

[Publications] C.M.Braun: "Charge Fields in Bi_<12>GeO_<20> and Dynamic Flat-band Potential" J.Appl.Phys.63. 5756-5760 (1888)

[Publications] A.Manivannan: "Electroluminescence at the SiC/Electrolyte Interface" J.Luminescence. 42. 43-47 (1988)

[Publications] 小早川紘一: "酸化チタン(IV)の光触媒活性" 日本化学会誌. 1175-1181 (1988)

[Publications] M.Okano: "Photoelectrochemical Polymerization of Pyrrole on ZnO and Its Application of Conducting Pattern Generation" J.Electrochem.Sci.135. 1641-1645 (1988)

[Publications] S.Yamagata: "Photocatalytic Oxidation of Alcohols on TiO_2" Bull.Chem.Soc.Japan. 61. 3429-3434 (1988)

[Publications] 吉原佐知雄: "光音響分光による銅めっき過程のin situ観測" 金属表面技術. 39. 527-531 (1988)

[Publications] S.Yoshihara: "Photoacoustic In Situ Measurement of Quantum Efficiency for Photoelectrochemical Evolution of Hydrogen on P-Indium Phosphide" Mat.Res.Bull.23. 759-763 (1988)

[Publications] K.Itoh: "Highly Sensitive Flash Photolysis with Optical Waveguides:Photodeposition of Ag onto Particulate TiO_2 from Solution" J.Am.Chem.Soc.110. 6267-6269 (1988)

[Publications] 吉原佐知雄: "光励起された白金担持P型InPの水素電極反応における電解分解率" 日本化学会誌. 1664-1669 (1988)

[Publications] A.Manivannan: "Investigation of Current Doubling Reactions at SiC/Aqueous Electrolyte Junction in Relation to the Band Energetics" Ber.Bunsenges.Phys.Chem.92. 1522-1528 (1988)

[Publications] K.Itoh: "An Application of Optical Waveguides to Electrochemistry:Constuction of Optical Waveguide Electrodes" J.Phys.Chem.92. 7043-7047 (1988)

[Publications] R.Cai: "Photocatalytic Effect on Tumor Cells" Photomedicine and Photobiology. 253-255 (1989)

[Publications] S.Yamagata: "Photocatalytic Decomposition of 2-Ethoxyethanol on Titanium Dioxide" Bull.Chem.Soc.Japan. 62. 1004-1010 (1989)

[Publications] T.Kato: "Photoelectrochemical Formation of Phenol from Benzene on ZnO" Kagaku Kaishi. 784-788 (1989)

[Publications] A.Aruchamy: "Photoresponse of Oxide Layers on Copper in Aqueous Electrolytes Containing Corrosion Inhivitors" J.Electroanal.Chem.266. 397-408 (1989)

[Publications] E.Kikuchi: "Mechanism of Stabilization of ZnO Photoanode in High pH Solutions" Bull.Chem.Soc.Japan. 62. 2789-2792 (1989)

[Publications] K.Sakamaki: "A Simple and Rugged Home-Built Scanning Tunneling Microscope for Operation in Both Air and liquied" Bull.Chem.Soc.Japan. 62. 2890-2896 (1989)

[Publications] T.Amemiya: "Spectroscopic and Electrochemical Behavior of Polypyrrole Films Incorporation Methylene Blue,and Their Enhancement in Electrochromism" Ber.Bunsenges.Phys.Chem.93. 682-689 (1989)

[Publications] K.Sakamaki: "Imaging the Phenol Molecule Adsorbed on TiO_2 by Scanning Tunneling Micorscopy" Surface Sci.219. 531-536 (1989)

[Publications] S.Yamagata: "Homogeneous and Heterogeneous Photocatalysis-Polymerization of Cyclohexene Oxide Catalyzed by Ti(OR),and TiO_2" Denki Kagaku. 57. 436-437 (1989)

[Publications] K.Kobayakawa: "Photodecomposition of Kraft Lignin Catalyzed by Titanium Dioxide" Bull.Chem.Sco.Japan. 62. 3433-3436 (1989)

[Publications] A.Aruchamy: "Photoanodic Behaviour of Cu_2O Corrosion Layers on Copper Electrdes" J.Electroanal.Chem.273. 125-136 (1989)

[Publications] T.Kato: "Photocatalytic Formation of Phenol by using Hydrophobic TiO_2 Powders Located at Interface Between Benzene and Water" Denki Kagaku. 57. 1155-1158 (1989)

[Publications] K.Kobayakawa: "Photoanodic Dissolution of n-Type Cu_2O Film" Denki Kagaku. 57. 1217-1218 (1989)

[Publications] R.Baba: "Patten Formation by the Photoelectrodeposition Cating on Illuminated Semiconductor Films" MRS Int'1.Mtg.on Adv.Mats.12. 167-173 (1989)

[Publications] Z.F.Liu: "Observation of Tip-Induced Ordered Molecular Arrangement on Graphite Surfaces by Scanning Tunneling Microscopy" Chem.Lett.17-20 (1989)

藤嶋昭東京大学, 工学部, 教授 (30078307)