Yousuke Ooyama

Last Updated :2019/02/01

Affiliations, Positions
Graduate School of Engineering, Professor
E-mail
yooyamahiroshima-u.ac.jp

Basic Information

Major Professional Backgrounds

  • 2001/04/01, 2002/03/31, Sanyo Chemical Industries, Researcher
  • 2003/04/01, 2005/03/31, Japan Society for the Promotion of Science, Special Postdoctoral Researcher
  • 2005/04/01, 2011/03/31, Hiroshima University, Graduate School of Engineering , Research associate
  • 2007/09/18, 2007/12/18, Leibniz Institute for Solid State and Materials Research Dresden, Researcher
  • 2011/04/01, 2017/03/31, Hiroshima University, Institute of Engineering, Associate Professor
  • 2017/04/01, Hiroshima University, Institute of Engineering, Professor

Educational Backgrounds

  • Kochi University, Faculty of Science, Department of Chemistry, Japan, 1995/04, 1999/03
  • Kochi University, Graduate School, Division of Natural Science, Japan, 1999/04, 2001/03
  • Kochi University, Graduate School, Division of Science, Japan, 2002/04, 2005/03

Academic Degrees

  • Bachelor of Science, Kochi University
  • Master of Science, Kochi University
  • Doctor of Science, Kochi University

Educational Activity

  • School of Engineering:Cluster 3(Applied Chemistry, Biotechnology and Chemical Engineering), Graduate School of Engineering:Applied Chemistry, Graduate School of Engineering:Applied Chemistry

Research Fields

  • Chemistry;Materials chemistry;Organic and hybrid materials
  • Chemistry;Applied chemistry;Functional solid state chemistry

Research Keywords

  • Dye-sensitized solar cell
  • Mechanofluorochromism
  • Fluorescence sensor for water
  • Photo-induced electron transfer
  • Solar energy-to-electricity conversion yield
  • Solid-state fluorescence
  • Fluorescent dye
  • Organic dye
  • Solar cell
  • Water

Affiliated Academic Societies

  • The Chemical Society of Japan
  • The Electrochemical Society of Japan
  • The Society of Polymer Science, Japan
  • The Society of Synthetic Organic Chemistry, Japan
  • The Japanese Photochemistry Association
  • Japan Society of Colour Material
  • The Kinki Chemical Society, Japan

Educational Activity

Course in Charge

  1. 2018, Undergraduate Education, Second Semester, Basic Experiments in Chemistry
  2. 2018, Undergraduate Education, 3Term, Electrochemistry
  3. 2018, Graduate Education (Master's Program) , First Semester, Seminar in Applied Chemistry IA
  4. 2018, Graduate Education (Master's Program) , Second Semester, Seminar in Applied Chemistry IB
  5. 2018, Graduate Education (Master's Program) , 3Term, Functional Dye Chemistry
  6. 2018, Graduate Education (Master's Program) , Year, Directed Study in Applied Chemistry II
  7. 2018, Graduate Education (Doctoral Program) , Year, Directed Study in Applied Chemistry V
  8. 2018, Graduate Education (Master's Program) , Year, Seminar in Applied Chemistry II
  9. 2018, Graduate Education (Master's Program) , First Semester, Directed Study in Applied Chemistry IA
  10. 2018, Graduate Education (Master's Program) , Second Semester, Directed Study in Applied Chemistry IB

Award of Education

  1. 2012

Research Activities

Academic Papers

  1. Solid-surface fluorescence enhancement behavior of a benzofuranoquinol-type fluorescent host upon enclathration of alicyclic amines, CHEMISTRY LETTERS, 837-838, 1999
  2. Fluorescence sensing behavior of thin-films of benzofuranoquinol clathrate host upon exposure to various gaseous amines, CHEMISTRY LETTERS, 714-715, 2000
  3. Heterocyclic quinol-type fluorophores. Part 2. Solid-state fluorescence enhancement behaviour of benzofurano[3,2-b]-naphthoquinol-type clathrate hosts upon inclusion of amine molecules, JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 708-714, 2002
  4. Heterocyclic quinol-type fluorophores. Part 1. Synthesis of new benzofurano[3,2-b] naphthoquinol derivatives and their photophysical properties in solution and in the crystalline state, JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 700-707, 2002
  5. Heterocyclic quinol-type fluorophores. Dramatic solid-state fluorescence enhancement behaviour of imidazoanthraquinol-type clathrate hosts upon inclusion of various kinds of organic solvent molecules, NEW JOURNAL OF CHEMISTRY, 29(9), 1204-1212, 2005
  6. Heterocyclic quinol-type fluorophores. Synthesis of novel imidazoanthraquinol derivatives and their photophysical properties in benzene and in the crystalline state, NEW JOURNAL OF CHEMISTRY, 29(3), 447-456, 2005
  7. Changes in electrochemical and optical properties of oligoalkylthiophene film induced by bipolaron formation, JOURNAL OF PHYSICAL CHEMISTRY B, 110(4), 1529-1535, FEB 2 2006
  8. Influence of extended pi-conjugation units on carrier mobilities in conducting polymers, CHEMICAL PHYSICS LETTERS, 420(4-6), 387-390, MAR 21 2006
  9. Dramatic effects of the substituents on the solid-state fluorescence properties of structural isomers of novel benzofuro[2,3-c]oxazolocarbazole-type fluorophores, CHEMISTRY LETTERS, 35(8), 902-903, AUG 5 2006
  10. Unusual electrochemical response of oligoalkylthiophene films: Involvement of bipolarons, MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 455, 367-372, 2006
  11. Heterocyclic quinol-type fluorophores: Synthesis, X-ray crystal structures, and solid-state photophysical properties of novel 5-hydroxy-5-substituent-benzo[b]naphtho[1,2-d]furan-6-one and 3-hydroxy-3-substituent-benzo[kl]xanthen-2-one derivatives, CHEMISTRY-A EUROPEAN JOURNAL, 12(30), 7827-7838, 2006
  12. Molecular design of novel non-planar heteropolycyclic fluorophores with bulky substituents: convenient synthesis and solid-state fluorescence characterization, ORGANIC & BIOMOLECULAR CHEMISTRY, 4(18), 3406-3409, 2006
  13. Template-free formation of microspheres based on poly(N-methylaniline), POLYMER JOURNAL, 38(7), 732-736, 2006
  14. Synthesis of organosilicon polymers containing donor-acceptor type pi-conjugated units and their applications to dye-sensitized solar cells, JOURNAL OF ORGANOMETALLIC CHEMISTRY, 692(4), 801-805, JAN 15 2007
  15. Photovoltaic performance of dye-sensitized solar cells based on donor acceptor pi-conjugated benzofuro[2,3-c]oxazolo[4,5-a] carbazole-type fluorescent dyes with a carboxyl group at different positions of the chromophore skeleton, ORGANIC & BIOMOLECULAR CHEMISTRY, 5(13), 2046-2054, 2007
  16. Synthesis and solid-state fluorescence properties of structural isomers of novel benzofuro[2,3-c]oxazolocarbazole-type fluorescent dyes, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 3613-3621, AUG 2007
  17. Dye-sensitized solar cells based on novel donor-acceptor pi-conjugated benzofuro[2,3-c]oxazolo[4,5-a]carbazole-type fluorescent dyes exhibiting solid-state fluorescence, NEW JOURNAL OF CHEMISTRY, 31(12), 2076-2082, 2007
  18. Synthesis of bis(diarylphosphino)dithienosilole derivatives as novel photo- and electroluminescence materials, ORGANOMETALLICS, 26(26), 6591-6595, DEC 17 2007
  19. Synthesis of new-type donor-acceptor pi-conjugated benzofuro[2,3-c]oxazolo[4,5-a]carbazole fluorescent dyes and their photovoltaic performances of dye-sensitized solar cells, TETRAHEDRON LETTERS, 48(52), 9167-9170, DEC 24 2007
  20. Synthesis, X-ray crystal structures and solid-state fluorescence properties of 3-dibutylamino-6-alkoxy-6-phenylnaphthol2,3-bibenzofuran-11(6H)-one Derivatives, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 5010-5019, 2007
  21. Solid-emissive fluorophores constructed by a non-planar heteropolycyclic structure with bulky substituents: synthesis and X-ray crystal structures, ORGANIC & BIOMOLECULAR CHEMISTR, 5(8), 1260-1269, 2007
  22. A facile synthesis of solid-emissive fluorescent dyes: dialkylbenzo[b]naphtho[2,1-d]furan-6-one-type fluorophores with strong blue and green fluorescence emission properties, TETRAHEDRON LETTERS, 48(33), 5791-5793, 2007
  23. Poly(N-methylaniline) microsphere formation and control of the average diameter by simple chemical polymerization, MATERIALS CHEMISTRY AND PHYSICS, 106(2), 279-285, 2007
  24. Improvement of photovoltages in organic dye-sensitized solar cells by Li intercalation in particulate TiO2 electrodes, APPLIED PHYSICS LETTERS, 90(10), 103517-103517, 2007
  25. Attachment of disilanylene-oligothienylene polymers on TiO2 surface by photochemical cleavage of the Si-Si bonds, CHEMISTRY LETTERS, 37(3), 316-317, MAR 5 2008
  26. Drastic Enhancement of Cycle Lifetime of Electrochromic Devices Using Polysilsesquioxane as an Anchoring Agent, CHEMISTRY LETTERS, 37(9), 964-965, SEP 5 2008
  27. Heterocyclic quinol-type fluorophores: Solid-state fluorescence change in crystals of benzo[b]naphtho[1,2-d]furan-6-one-type fluorophore upon inclusion of organic solvent molecules, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 2564-2570, 2008
  28. Solid-State Fluorescence Changes of 2-(4-Cyanophenyl)-5-[4-(diethylamino)phenyl]-3H-imidazo[4,5-a]naphthalene upon Inclusion of Organic Solvent Molecules, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 5899-5906, 2008
  29. A New Class of Fluorescent Dye for Sensing Water in Organic Solvents by Photo-Induced Electron Transfer - A (Phenylamino)naphtho[1,2-d]oxazol-2-yl-Type Fluorophore with both Proton-Binding and Proton-Donating Sites, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 5239-5243, 2008
  30. Synthesis, X-ray crystal structures, and solid-state fluorescence properties of 5,5-dialkyl-9-dibutylamino-5H-benzo[b]naphtho[1,2-d]furan-6-one and 3,3-dialkyl-9-dibutylamino-3H-benzo[kl]xanthen-2-one, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 3085-3094, 2008
  31. The effect of the inclusion of guest molecules on the solid-state fluorescence of naphthooxazole-type fluorophores, DYES AND PIGMENTS, 77(2), 315-322, 2008
  32. Synthesis, X-ray crystal structure, and solid-state blue fluorescence of dialkylbenzo[b]naphtho[2,1-d]furan-6-one-type fluorophores, TETRAHEDRON, 64(30-31), 7219-7224, 2008
  33. Interference and electro-optical Kerr effects responsible for electroabsorption spectra of transparent Parylene-C films, CHEMICAL PHYSICS LETTERS , 457(1), 115-118, 2008
  34. ESR Study on the Reversible Electron Transfer from O-2(2-) to Ti4+ on TiO2 Nanoparticles Induced by Visible-Light Illumination, JOURNAL OF PHYSICAL CHEMISTRY C, 113(4), 1160-1163, JAN 29 2009
  35. Solid-state Photophysical Properties and Functional Characteristics of Heterocyclic Quinol-type Fluorescent Hosts with Clathrate-forming Ability, JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN, 67(4), 337-348, APR 2009
  36. Photovoltaic performance of dye-sensitized solar cells based on a series of new-type donor-acceptor-pi-conjugated sensitizer, benzofuro[2,3-c]oxazolo[4,5-a]carbazole fluorescent dyes, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 203(2-3), 177-185, APR 15 2009
  37. Solvatochromism of novel donor-pi-acceptor type pyridinium dyes in halogenated and non-halogenated solvents, NEW JOURNAL OF CHEMISTRY, 33(11), 2311-2316, 2009
  38. Attachment of poly[(ethoxyhexylsilylene)oligothienylene]s to inorganic oxide surface, SYNTHETIC METALS, 159(9-10), 817-820, MAY 2009
  39. Molecular Designs and Syntheses of Organic Dyes for Dye-Sensitized Solar Cells, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 2903-2934, JUN 2009
  40. Mechanofluorochromism of a Series of Benzofuro[2,3-c]oxazolo[4,5-a]-carbazole-Type Fluorescent Dyes, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 5321-5326, NOV 2009
  41. Development of anchored oligothiophenes on substrates for the application to the tunable transparent conductive films, POLYMER, 50(26), 6198-6201, DEC 10 2009
  42. Drastic Solid-State Fluorescence Enhancement Behaviour of Phenanthro[9,10-d]imidazole-Type Fluorescent Hosts upon Inclusion of Carboxylic Acids, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 5979-5990, 2009
  43. The design of a novel fluorescent PET sensor for proton and water: A phenylaminonaphtho[1,2-d]oxazol-2-yl-type fluorophore containing proton donor and acceptor groups, DYES AND PIGMENTS, 82(1), 58-64, 2009
  44. Drastic solid-state fluorescence enhancement behaviour of imidazo[4,5-a]-naphthalene-type fluorescent hosts upon inclusion of polyethers and tert-butyl alcohol, TETRAHEDRON, 65(7), 1467-1474, 2009
  45. Photophysical properties of phenanthro[9,10-d]imidazole-type fluorescent hosts upon inclusion of organic solvent molecules, TETRAHEDRON, 65(40), 8336-8343, 2009
  46. Dye-Sensitized Solar Cells Based on a Novel Fluorescent Dye with a Pyridine Ring and a Pyridinium Dye with the Pyridinium Ring Forming Strong Interactions with Nanocrystalline TiO2 Films, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 92-100, JAN 2010
  47. Highly efficient organic light-emitting diodes (OLEDs) based on an iridium complex with rigid cyclometalated ligand, ORGANIC ELECTRONICS, 11(4), 632-640, APR 2010
  48. Absorption spectra of field-generated cation radical in triphenyldiamine film: Lack of intervalence-charge transfer band, CHEMICAL PHYSICS LETTERS, 485(1-3), 100-103, JAN 18 2010
  49. Electron-Transfer Reaction of Oxygen Species on TiO2 Nanoparticles Induced by Sub-band-gap Illumination, JOURNAL OF PHYSICAL CHEMISTRY C, 114(2), 1240-1245, JAN 21 2010
  50. Synthesis and fluorescence and electrochemical properties of D-pi-A structural isomers of benzofuro[2,3-c]oxazolo[4,5-a]carbazole-type and benzofuro[2,3-c]oxazolo[5,4-a]carbazole-type fluorescent dyes, ORGANIC & BIOMOLECULAR CHEMISTRY, 8(12), 2756-2770, JUN 21 2010
  51. Trapping of atomic hydrogens in cage-shaped silsesquioxanes by electric discharge, CHEMICAL COMMUNICATIONS, 46(12), 2076-2078, 2010
  52. Monodisperse and isolated microspheres of poly(N-methylaniline) prepared by dispersion polymerization, EUROPEAN POLYMER JOURNAL, 46(7), 1480-1487, JUL 2010
  53. Synthesis of Dithienobismoles as Novel Phosphorescence Materials, ORGANOMETALLICS, 29(15), 3239-3241, AUG 9 2010
  54. Optical absorption spectrum of pentacene cation radicals measured by charge-modulation spectroscopy, CHEMICAL PHYSICS LETTERS, 495(4-6), 228-231, AUG 10 2010
  55. Synthesis of star-shaped molecules with pyrene-containing pi-conjugated units linked by an organosilicon core, APPLIED ORGANOMETALLIC CHEMISTRY, 24(8), 540-544, AUG 2010
  56. Mechanofluorochromism of heteropolycyclic donor-pi-acceptor type fluorescent dyes, TETRAHEDRON, 66(36), 7268-7271, SEP 4 2010
  57. Dye-Sensitized Solar Cells Based on D-pi-A Fluorescent Dyes with Pyridine Ring Forming Strong Interaction with Nanocrystalline TiO2, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 83(9), 1113-1121, SEP 15 2010
  58. Synthesis and Chromic Behaviors of Dithienosiloles with Push-Pull Substituents Toward VOC Detection, MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 529, 1-9, 2010
  59. Heterocyclic quinol-type fluorophores. Part 9: Effect of forming a continuous intermolecular hydrogen bonding chain between fluorophores on the solid-state fluorescence properties, TETRAHEDRON, 66(40), 7954-7860, 2010
  60. Molecular design of mechanofluorochromic dyes and their solid-state fluorescence properties, JOURNAL OF MATERIALS CHEMISTRY, 21(23), 8372-8380, 2011
  61. New molecular design of donor-pi-acceptor dyes for dye-sensitized solar cells: control of molecular orientation and arrangement on TiO2 surface, NEW JOURNAL OF CHEMISTRY, 35(1), 111-118, 2011
  62. Detection of water in organic solvents by photo-induced electron transfer method, ORGANIC & BIOMOLECULAR CHEMISTRY, 9(5), 1314-1316, 2011
  63. Hybridization of Carbon Nanotubes with Si-pi Polymers and Attachment of Resulting Hybrids to TiO2 Surface, CHEMISTRY LETTERS, 40(1), 87-89, JAN 5 2011
  64. Charge transport properties of polymer films comprising oligothiophene in silsesquioxane network, POLYMER CHEMISTRY, 2(4), 868-872, 2011
  65. Fluorescence PET (photo-induced electron transfer) sensors for water based on anthracene-boronic acid ester, CHEMICAL COMMUNICATIONS, 47(15), 4448-4450, 2011
  66. Synthesis of Dithienogermole-Containing pi-Conjugated Polymers and Applications to Photovoltaic Cells, ORGANOMETALLICS, 30(12), 3233-3236, JUN 27 2011
  67. Electrochemical reduction of graphene oxide in organic solvents, ELECTROCHIMICA ACTA, 56(15), 5363-5368, JUN 1 2011
  68. Dye-Sensitized Solar Cells Based On Donor-Acceptor pi-Conjugated Fluorescent Dyes with a Pyridine Ring as an Electron-Withdrawing Anchoring Group, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 50(32), 7429-7433, 2011
  69. Synthesis, characterization, and photovoltaic applications of dithienogermole-dithienylbenzothiadiazole and -dithienylthiazolothiazole copolymers, POLYMER, 52(18), 3912-3916, AUG 18 2011
  70. Fluorescence PET (photo-induced electron transfer) sensor for water based on anthracene-amino acid, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 222(1), 52-55, JUL 5 2011
  71. Dye-Sensitized Solar Cells Based on Donor-pi-Acceptor Fluorescent Dyes with a Pyridine Ring as an Electron-Withdrawing-Injecting Anchoring Group, CHEMISTRY-A EUROPEAN JOURNAL, 17(52), 14837-14843, DEC 2011
  72. Synthesis and photophysical properties of structural isomers of novel 2,10-disubstituted benzofuro[2,3-e]naphthoxazole-type fluorescent dyes, DYES AND PIGMENTS, 91(3), 481-488, 2011
  73. Mechanofluorochromism of carbazole-type D-pi-A fluorescent dyes, TETRAHEDRON, 68(2), 529-533, JAN 14 2012
  74. Electrosynthesis and charge-transport properties of poly(3 ',4 '-ethylenedioxy-2,2 ':5 ',2 ''-terthiophene), MATERIALS CHEMISTRY AND PHYSICS, 131(3), 752-756, JAN 5 2012
  75. Nanosized starlike molecules. Synthesis and optical properties of 2,4, 6-tris(disilanylenebithienylene)-1,3,5-triazine derivatives, JOURNAL OF ORGANOMETALLIC CHEMISTRY, 702, 67-72, APR 1 2012
  76. Development of D-pi-A Fluorescent Dyes Based on Control of Molecular Arrangement and/or Orientation, and Their Application to Dye-Sensitized Solar Cells, JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN, 70(5), 524-540, MAY 2012
  77. Oligothiophenes incorporated in a polysilsesquioxane network: application to tunable transparent conductive films, JOURNAL OF MATERIALS CHEMISTRY, 22(32), 16407-16415, 2012
  78. Development of a simple method for fabrication of transparent conductive films with high mechanical strength, SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 13(4), AUG 2012
  79. Synthesis and specific solvatochromism of D-pi-A type pyridinium dye, TETRAHEDRON, 68(41), 8577-8580, OCT 14 2012
  80. Highly sensitive fluorescence PET (photo-induced electron transfer) sensor for water based on anthracene-bisboronic acid ester, RSC ADVANCES, 2(20), 7666-7668, 2012
  81. Synthesis of Carbazole-Type D-pi-A Fluorescent Dyes Possessing Solid-State Red Fluorescence Properties, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 4853-4859, SEP 2012
  82. Synthesis and Optical Properties of Dithienostiboles, CHEMISTRY LETTERS, 41(9), 1002-1003, SEP 5 2012
  83. Intermolecular distances of carboxylated TEMPO derivatives on TiO2 evaluated by spin-probe ESR, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 14(46), 15988-15990, 2012
  84. Synthesis of disilanylene polymers with donor-acceptor-type pi-conjugated units and applications to dye-sensitized solar cells, JOURNAL OF ORGANOMETALLIC CHEMISTRY, 719, 30-35, NOV 15 2012
  85. Synthesis of a Novel Family of Polysilsesquioxanes Having Oligothiophenes with Well-Defined Structures, INTERNATIONAL JOURNAL OF POLYMER SCIENCE, 2012
  86. Control of Molecular Arrangement and/or Orientation of D-pi-A Fluorescent Dyes for Dye-sensitized Solar Cells, CHEMISTRY LETTERS, 41(11), 1384-1396, NOV 5 2012
  87. Photophysical and Electrochemical Properties, and Molecular Structures of Organic Dyes for Dye-Sensitized Solar Cells, CHEMPHYSCHEM, 13(18), 4032-4080, DEC 21 2012
  88. Dye-sensitized solar cells based on D-pi-A fluorescent dyes with two pyridyl groups as an electron-withdrawing-injecting anchoring group, CHEMICAL COMMUNICATIONS, 49(25), 2548-2550, 2013
  89. Synthesis of dithienosilole-based highly photoluminescent donor-acceptor type compounds, DALTON TRANSACTIONS, 42(10), 3646-3652, 2013
  90. Specific solvatochromism of D-pi-A type pyridinium dyes bearing various counter anions in halogenated solvents, TETRAHEDRON, 69(6), 1755-1760, FEB 11 2013
  91. Development of Dye-Sensitized Solar Cells Based on D-pi-A Pyridinium Dye without Carboxylic Acid Moiety as Anchoring Group, ELECTROCHEMISTRY, 81(5), 325-327, MAY 2013
  92. Low bandgap polymers with benzodithiophene and bisthienylacrylonitrile units for photovoltaic applications, EUROPEAN POLYMER JOURNAL, 49(6), 1634-1641, JUN 2013
  93. Solid-state fluorescence properties and mechanofluorochromism of D-pi-A pyridinium dyes bearing various counter anions, TETRAHEDRON, 69(29), 5818-5822, JUL 22 2013
  94. Synthesis of Specific Solvatochromic D--A Dyes with Pyridinium Ring as Electron-Withdrawing Group for Dye-Sensitized Solar Cells, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 2013(21), 4533-4538, JUL 2013
  95. Dye-sensitized solar cells based on a functionally separated D-pi-A fluorescent dye with an aldehyde as an electron-accepting group, NEW JOURNAL OF CHEMISTRY, 37(8), 2336-2340, 2013
  96. Photovoltaic performance of dye-sensitized solar cells based on D-pi-A type BODIPY dye with two pyridyl groups, NEW JOURNAL OF CHEMISTRY, 37(8), 2479-2485, 2013
  97. Synthesis of donor-acceptor type new organosilicon polymers and their applications to dye-sensitized solar cells, JOURNAL OF ORGANOMETALLIC CHEMISTRY, 741, 97-101, OCT 1 2013
  98. Synthesis, Optical Properties, and Crystal Structures of Dithienostannoles, ORGANOMETALLICS, 32(15), 4136-4141, AUG 12 2013
  99. Lewis-Acid Sites of TiO2 Surface for Adsorption of Organic Dye Having Pyridyl Group as Anchoring Unit, JOURNAL OF PHYSICAL CHEMISTRY C, 117(32), 16364-16370, AUG 15 2013
  100. Synthesis of diphenylamino-carbazole substituted BODIPY dyes and their photovoltaic performance in dye-sensitized solar cells, RSC ADVANCES, 3(39), 18099-18106, 2013
  101. Molecular design and synthesis of fluorescence PET (photo-induced electron transfer) sensors for detection of water in organic solvents, RSC ADVANCES, 3(45), 23255-23263, 2013
  102. Synthesis and optical and photovoltaic properties of dithienosilole-dithienylpyridine and dithienosilole-pyridine alternate polymers and polymer-B(C6F5)(3) complexes, POLYMER JOURNAL, 45(11), 1153-1158, NOV 2013
  103. Development of a D-pi-A dye with benzothienopyridine as the electron-withdrawing anchoring group for dye-sensitized solar cells, JOURNAL OF MATERIALS CHEMISTRY A, 2(10), 3293-3296, 20140104
  104. Design and Syntheses of Highly Emissive Aminobenzopyrano-xanthene Dyes in the Visible and Far-Red Regions, ORGANIC LETTERS, 16(1), 258-261, 20140103
  105. Development of D-pi-Cat fluorescent dyes with a catechol group for dye-sensitized solar cells based on dye-to-TiO2 charge transfer, JOURNAL OF MATERIALS CHEMISTRY A, 2(22), 8500-8511, 20140401
  106. Synthesis of Group 14 Dipyridinometalloles with Enhanced Electron-Deficient Properties and Solid-State Phosphorescence, ORGANOMETALLICS, 33(2), 517-521, 20140127
  107. Preparation and Photoinduced Energy and Electron Transfer of Donor-Silicon-Acceptor Polymers, ASIAN JOURNAL OF ORGANIC CHEMISTRY, 3(2), 170-175, 20140204
  108. Effects of pi-conjugated side chains on properties and performances of photovoltaic copolymers, SYNTHETIC METALS, 187, 30-36, 20140101
  109. A new cosensitization method using the Lewis acid sites of a TiO2 photoelectrode for dye-sensitized solar cells, CHEMICAL COMMUNICATIONS, 50(48), 6398-6401, 20140401
  110. Development of highly-sensitive fluorescence PET (photo-induced electron transfer) sensor for water: anthracene-boronic acid ester, RSC ADVANCES, 4(48), 25330-25333, 20140522
  111. Development of D-pi-A dyes with a pyrazine ring as an electron-withdrawing anchoring group for dye-sensitized solar cells, RSC ADVANCES, 4(57), 30225-30228, 20140618
  112. Preparation of poly(disilanylenetetracyanobutadienyleneoligothienylene)s as new donor-acceptor type organosilicon polymers, JOURNAL OF ORGANOMETALLIC CHEMISTRY, 749, 255-260, 20140101
  113. Synthesis and electrical properties of novel oligothiophenes partially containing 3,4-ethylenedioxythiophenes, RSC ADVANCES, 4(5), 2501-2508, 20140101
  114. BODIPY dye possessing solid-state red fluorescence and green metallic luster properties in both crystalline and amorphous states, RSC ADVANCES, 4(3), 1163-1167, 20140101
  115. Distibylation of Acetylenes with Ph2Sb-SbPh2: Synthesis, Crystal Structures and Phosphorescence Properties of Bis(diphenylstibyl)ethenes, ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 69(11-12), 1181-1187, 20141201
  116. In situ conductivity measurements of polythiophene partially containing 3,4-ethylenedioxythiophene and 3-hexylthiophene, JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 19(1), 71-76, 20150101
  117. Effective co-sensitization using D-pi-A dyes with a pyridyl group adsorbing at Bronsted acid sites and Lewis acid sites on a TiO2 surface for dye-sensitized solar cells, RSC ADVANCES, 5(4), 2531-2535, 20150101
  118. Synthesis, optical, electrochemical and photovoltaic properties of a D-pi-A fluorescent dye with triazine ring as electron-withdrawing anchoring group for dye-sensitized solar cells, RSC ADVANCES, 5(27), 21012-21018, 20150301
  119. Synthesis of conjugated D-A polymers bearing bi(dithienogermole) as a new donor component and their applications to polymer solar cells and transistors, RSC ADVANCES, 5(17), 12686-12691, 20150101
  120. Highly Efficient Cosensitized Plastic-Substrate Dye-Sensitized Solar Cells with Black Dye and Pyridine-Anchor Organic Dye, BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 88(2), 366-374, 20150215
  121. Synthesis of D-A polymers with a disilanobithiophene donor and a pyridine or pyrazine acceptor and their applications to dyesensitized solar cells, RSC ADVANCES, 5(46), 36673-36679, 20150410
  122. Reversible Near-Infrared/Blue Mechanofluorochromism of Aminobenzopyranoxanthene, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 137(20), 6436-6439, 20150527
  123. Development of D-pi-A Fluorescent Dyes with a 3-Pyridyl Group as Electron-Withdrawing Anchoring Group for Dye-Sensitized Solar Cells, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 3713-3720, 20150430
  124. Development of functionally separated D-π-A fluorescent dye with pyrazyl group as electron-accepting group for dye-sensitized solar cell, ORGANIC CHEMISTRY FRONTIERS, 2, 552-559, 20150401
  125. Synthesis of novel dyes having EDOT-containing oligothiophenes as π-linker for panchromatic dye-sensitized solar cells, SYNTHETIC METALS, 207, 65-71, 20150605
  126. Fluorescence sensor for water based on PET (photo-induced electron transfer): anthracene-bis(aminomethyl)phenylboronic acid ester, DYES AND PIGMENTS, 1234, 248-253, 20150814
  127. Development of D-π-A dye with (pyridiniumyl)alkanesulfonate as electron-withdrawing anchoring group for dye-sensitized solar cell, DYES AND PIGMENTS, 123, 340-354, 20150824
  128. Photoinduced electron injection from an organic dye having a pyridyl anchor to Lewis acid site of TiO2 surface, RSC ADVANCES, 5(87), 71387-71392, 20150820
  129. A new co-sensitization method employing D-pi-A dye with pyridyl group and D-pi-Cat dye with catechol unit for dye-sensitized solar cells, DYES AND PIGMENTS, 122, 40-45, NOV 2015
  130. Effect of Substituents in Catechol Dye Sensitizers on Photovoltaic Performance of Type II Dye-Sensitized Solar Cells, CHEMPHYSCHEM, 16(14), 3049-3057, OCT 5 2015
  131. Preparation and Reactions of Dichlorodithienogermoles, ORGANOMETALLICS, 34(23), 5609-5614, DEC 14 2015
  132. Synthesis, Properties, and Polymerization of Spiro[(dipyridinogermole)(dithienogermole)], ORGANOMETALLICS, 35(1), 20-26, JAN 11 2016
  133. Development of a D-pi-A pyrazinium photosensitizer possessing singlet oxygen generation, RSC ADVANCES, 6(7), 5428-5435, 20160112
  134. Fused pi-conjugated imidazolium liquid crystals: synthesis, self-organization, and fluorescence properties, RSC ADVANCES, 6(11), 9152-9159, 20160122
  135. Dye-sensitized solar cell based on an inclusion complex of a cyclic porphyrin dimer bearing four 4-pyridyl groups and fullerene C-60, RSC ADVANCES, 6(20), 16150-16158, 20160208
  136. Synthesis of Dipyridinogermole-Copper Complex as Soluble Phosphorescent Material, CHEMISTRY LETTERS, 45(5), 502-504, MAY 5 2016
  137. Synthesis of silicon- or carbon-bridged polythiophenes and application to organic thin-film transistors, POLYMER JOURNAL, 48(5), 645-651, MAY 2016
  138. Enhanced photovoltaic performances of panchromatic EDOT-containing dye by introducing bulky dialkylfluorene units in donor moiety, DYES AND PIGMENTS, 132, 262-269, 201609
  139. Synthesis of a Conjugated D-A Polymer with Bi(disilanobithiophene) as a New Donor Component, MOLECULES, 21(6), 789-789, JUN 2016
  140. Synthesis and Properties of Benzofuran-Fused Silole and Germole Derivatives: Reversible Dimerization and Crystal Structures of Monomers and Dimers, ORGANOMETALLICS, 35(14), 2327-2332, JUL 25 2016
  141. Synthesis of Poly(dithienogermole)s, ORGANOMETALLICS, 35(14), 2333-2338, JUL 25 2016
  142. Group 14 Dithienometallole-Linked Ethynylene-Conjugated Porphyrin Dimers, INORGANIC CHEMISTRY, 55(15), 7432-7441, AUG 1 2016
  143. Synthesis of organic photosensitizers containing dithienogermole and thiadiazolo[3,4-c]pyridine units for dye-sensitized solar cells, DALTON TRANSACTIONS, 45(35), 13817-13826, 20160921
  144. A BODIPY sensor for water based on a photo-induced electron transfer method with fluorescence enhancement and attenuation systems, NEW JOURNAL OF CHEMISTRY, 40(9), 7278-7281, 20160901
  145. Development of D-pi-A Dye Sensitizers with Azine Ring and Their Photovoltaic Performances of Dye-Sensitized Solar Cells, JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN, 74(8), 760-780, AUG 2016
  146. Single oxygen generation sensitized by spiro (dipyridinogermole)(dithienogerrnole)s, DALTON TRANSACTIONS, 45(39), 15679-15683, 20161114
  147. Development of type-I/type-II hybrid dye sensitizer with both pyridyl group and catechol unit as anchoring group for type-I/type-II dye-sensitized solar cell, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 18(44), 30662-30676, 20161128
  148. Synthesis of pentamethyldisilanyl-substituted starlike molecule with triazine core and its application to dye-sensitized solar cells, JOURNAL OF ORGANOMETALLIC CHEMISTRY, 825, 63-68, DEC 15 2016
  149. Impact of the molecular structure and adsorption mode of D-pi-A dye sensitizers with a pyridyl group in dye-sensitized solar cells on the adsorption equilibrium constant for dye-adsorption on TiO2 surface, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 18(48), 32992-32998, 20161228
  150. Water-tunable solvatochromic and nanoaggregate fluorescence: dual colour visualisation and quantification of trace water in tetrahydrofuran, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 19(2), 1209-1216, 20170114
  151. Electrical Characteristics of Pentacene Films on Cross-Linked Polymeric Insulators of Varying Thicknesses, ACS Omega, 1(5), 784-788, NOV 2016
  152. Dithienogermole-containing D-pi-A-pi-A Photosensitizers for Dye-sensitized Solar Cells, CHEMISTRY LETTERS, 46(3), 310-312, MAR 2017
  153. Synthesis, optical and electrochemical properties, and photovoltaic performance of a panchromatic and near-infrared (D)(2-pi-A) type BODIPY dye with pyridyl group or cyanoacrylic acid, RSC ADVANCES, 7(22), 13072-13081, 20170225
  154. Synthesis and optical and electrochemical properties of julolidine-structured pyrido[3,4-b]indole dye, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 19(5), 3565-3574, FEB 7 2017
  155. Preparation of Dithienogermole-containing Polysilsesquioxane Films for Sensing Nitroaromatics, CHEMISTRY LETTERS, 46(4), 438-441, APR 2017
  156. Singlet oxygen generation properties of an inclusion complex of cyclic free-base porphyrin dimer and fullerene C-60, RSC ADVANCES, 7(30), 18690-18695, 20170328
  157. Ligand-Free Copper-Catalyzed Cyano- and Alkynylstannylation of Arynes, CHEMISTRYSELECT, 2(11), 3212-3215, APR 13 2017
  158. Synthesis of dithienogermole-containing polythiophenes, SYNTHETIC METALS, 227, 87-92, MAY 2017
  159. Aggregation-induced emission (AIE) characteristic of water-soluble tetraphenylethene (TPE) bearing four sulfonate salts, NEW JOURNAL OF CHEMISTRY, 41(12), 4747-4749, JUN 21 2017
  160. Synthesis of (Benzofurano)(benzothieno)germole, CHEMISTRYSELECT, 2(10), 3106-3109, APR 3 2017
  161. Studies on Spherically Distributed LUMO and Electron-Accepting Properties of Caged Hexakis(germasesquioxanes), ORGANOMETALLICS, 36(14), 2536-2540, 20170624
  162. Preparation of branched molecules by regioselective hydrosilation of tetrakis(ethynyldimethylsilyl)silanes and some of their properties, JOURNAL OF ORGANOMETALLIC CHEMISTRY, 846, 360-366, OCT 1 2017
  163. Development of a Dual-Fluorescence Emission Sensor Based on Photo-Induced Electron Transfer and Aggregation-Induced Emission Enhancement for Detection of Water, CHEMISTRYSELECT, 2(26), 7765-7770, SEP 11 2017
  164. Synthesis and optical and electrochemical properties of a phenanthrodithiophene (fused-bibenzo[c]thiophene) derivative, ORGANIC & BIOMOLECULAR CHEMISTRY, 15(35), 7302-7307, SEP 21 2017
  165. Photovoltaic performances of type-II dye-sensitized solar cells based on catechol dye sensitizers: retardation of back-electron transfer by PET (photo-induced electron transfer), MATERIALS CHEMISTRY FRONTIERS, 1(11), 2243-2255, NOV 1 2017
  166. Expression of fluorescence properties by self-PET (photo-induced electron transfer) suppression both in solution and in the solid state, NEW JOURNAL OF CHEMISTRY, 41(22), 13215-13218, NOV 21 2017
  167. Mitochondria-Targeting Polyamine-Protoporphyrin Conjugates for Photodynamic Therapy, CHEMMEDCHEM, 13(1), 15-19, JAN 8 2018
  168. Hybrid conjugated polymers with alternating dithienosilole or dithienogermole and tricoordinate boron units, POLYMER CHEMISTRY, 9(3), 291-299, JAN 21 2018
  169. Modification of TiO2 Surface by Disilanylene Polymers and Application to Dye-Sensitized Solar Cells, INORGANICS, 6(1), 20180301
  170. Optical and Photosensitizing Properties of Spiro (dipyridinogermole)(dithienogermole)s with Eletron-Donating Amino and Electron-Withdrawing Pyridinothiadiazole Substituents, CHEMISTRYSELECT, 3(30), 8604-8609, AUG 14 2018
  171. A colorimetric and fluorescent sensor for water in acetonitrile based on intramolecular charge transfer: D-(-A)(2)-type pyridine-boron trifluoride complex, CHEMICAL COMMUNICATIONS, 54(72), 10144-10147, SEP 16 2018

Invited Lecture, Oral Presentation, Poster Presentation

  1. Solid-State Fluorescence Properties and Mechanofluorochromism of D-π-A Fluorescent Dyes, Collaborative Conference on 3D & Materials Research (CC3DMR) 2014, 2014/06, With Invitation
  2. Development of D-π-A Dye Sensitizers with Pyridyl Group for High-Performance Dye-Sensitized Solar Cells, Collaborative Conference on 3D & Materials Research (CC3DMR) 2013, 2013, With Invitation
  3. Development of New Type of D-π-A Photosensitizers with Pyridyl Group for Dye-Sensitized Solar Cells, New Challenges in Photoinduced Electron-Transfer Chemistry of Organic Materials in 2012 Annual Meeting of The Japanese Photochemistry Association, 2012, With Invitation
  4. Molecular Design of Mechanofluorochromic Dyes and Their Solid-state Fluorescence Properties, 2011, With Invitation
  5. Fluorescent Mechanochromism of a Series of Benzofuro[2,3-c]oxazolo[4,5-a]carbazole-type Fluorescent Dyes), 2008, With Invitation
  6. Molecular Design and Synthesis of D-pi-A Photosensitizers with Pyridyl Group for Dye-Sensitized Solar Cells, The Seventh East Asia Symposium on Functional Dyes and Advanced Materials (EAS7), 2015/09/04, With Invitation, Osaka Prefecture University, Kinki Chemical Society, Chung Hwa Specialty Chemical Association, Taiwan Dyestuffs and Pigments Industrial Association, Osaka Prefecture University
  7. Type-II Dye-Sensitized Solar Cells Based on D-pi-Catechol Dye Sensitizers, The 13th International Kyoto Conference on New Aspects of Organic Chemistry, 2015/11/10, Without Invitation, Kyoto
  8. Molecular design and synthesis of D-pi-A dye sensitizers with pyridyl group for high-performance dye-sensitized solar cells, The 2015 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2015), 2015/12/17, Without Invitation, Hawaii
  9. Photovoltaic Performance of Dye-Sensitized Solar Cells Based on Diphenylamino-Carbazole Substituted BODIPY Dyes, Yousuke Ooyama, Collaborative Conference on 3D & Materials Research (CC3DMR) 2016, 2016/06/20, With Invitation, Incheon/Seoul, Korea
  10. Fluorescence PET (Photo-induced Electron Transfer) Sensors for Water Based on Anthracene-Phenylboronic Acid Ester, Yousuke Ooyama, 2017/06/26, With Invitation, Jeju Island, Korea

Awards

  1. Dyes and Pigments (2013 Impact Factor 3.468) 2013 Certificate of Excellence in Reviewing (in recognition of an outstanding contribution to the quality of the journal), ELSEVIER
  2. 2015年09月17日, Outstanding Reviewer Award: in recognition of an outstanding contribution to peer review for ChemPubSoc Europe and its sister journal Angewandte Chemie as well as Asian Chemical Editorial Society (ACES) journals, ChemPubSoc Europe and its sister journal Angewandte Chemie as well as Asian Chemical Editorial Society (ACES) journals
  3. 2016年11月05日, Phoenix Outstanding Researcher Award, Hiroshima University

Patented

  1. Patent, JP5167531, 2013/01/11
  2. Patent, JP5288560, 2013/06/14
  3. Patent, JP5751667, 2015/05/29
  4. Patent, 5757609, 2015/06/12
  5. Patent, 5783508, 2015/07/31
  6. Patent, 5939573, 2016/05/27

External Funds

Acceptance Results of Competitive Funds

  1. Strategic Basic Research Programs(ACT-C), 2015/10/01, 2016/09/30
  2. KAKENHI, 2015/04, 2018/03
  3. KAKENHI, 2012, 2014
  4. KAKENHI, Control of Molecular Orientation and Arrangement of Fluorescent Dyes and Development of Colorful Dye-Sensitized Solar Cells(DSSCs), 2010, 2011
  5. KAKENHI, Synthesis of Fluorescent Metal Complexes Possessing Solid-state Photoelectronic Properties and their Applications to Optoelectronic Devices, 2008, 2009
  6. KAKENHI, 2006, 2007
  7. Adaptable and Seamless Technology transfer Program through targetdriven R&D, 2012/11/01, 2013/10/31
  8. 2011/08, 2012/03
  9. 2009/09, 2010/03
  10. 2008/07, 2009/03

Social Activities

History as Peer Reviews of Academic Papers

  1. Electrochemistry, 2
  2. Tetrahedron Lett., 11
  3. Tetrahedron, 14
  4. ACS Appl. Mater. Inter., 3
  5. Adv. Mater., 1
  6. Adv. Funct. Mater., 1
  7. Anal. Chem., 1
  8. Angew. Chem. Int. Ed., 12
  9. Biomacromolecules, 1
  10. Bioorg. Med. Chem. Lett., 2
  11. Referee Bull. Chem. Soc. Jpn.1, 2
  12. Can. J. Chem., 1
  13. Chem. Asian J., 6
  14. Chem. Eur. J, 4
  15. Chem. Lett., 9
  16. Chem. Commun., 4
  17. Chin. J. Chem., 1
  18. Cryst. Growth Des., 2
  19. Dyes Pigm., 22
  20. Eur. J. Inorg. Chem., 1
  21. Eur. J. Org. Chem., 26
  22. HETEROCYCLES, 1
  23. J. Appl. Poly. Sci., 18
  24. J. Lumin., 3
  25. J. Organomet. Chem., 3
  26. J. Am. Chem. Soc., 1
  27. J. Mater. Chem. A, 1
  28. J. Mater. Chem. C, 3
  29. J. Mol. Struct. , 3
  30. J. Org. Chem., 1
  31. J. Phys. Chem. C, 2
  32. J. Phys. Chem. Lett., 1
  33. J. Photochem. Photobiol. A, 6
  34. Langmuir, 3
  35. Macromol. Chem. Phys., 1
  36. Mater. Chem. Phys., 2
  37. Molecules, 2
  38. New J. Chem., 5
  39. NPG Asia Mater., 1
  40. Org. Chem. Front., 1
  41. Phys. Chem. Chem. Phys., 2
  42. Polym. Bull., 1
  43. RSC Adv., 12
  44. Sens. Actuator B-Chem., 2
  45. Spectrochimica acta. Part A, 2
  46. Synth. Met., 1
  47. 色材協会誌, 2