Ken-ichi Saitow

Last Updated :2021/05/10

Affiliations, Positions
Natural Science Center for Basic Research and Development, Professor
E-mail
saitowhiroshima-u.ac.jp
Self-introduction
My research interests are material science, based on physical chemistry and molecular science

Basic Information

Academic Degrees

  • Ph.D., The Graduate University for Advanced Studies
  • Master of Science, Gakushuin University

Educational Activity

  • 【Bachelor Degree Program】School of Science : Chemistry

In Charge of Primary Major Programs

  • Chemistry

Research Fields

  • Interdisciplinary science and engineering;Nano / Micro science;Nanomaterials chemistry
  • Chemistry;Applied chemistry;Functional solid state chemistry

Research Keywords

  • Quantum dot
  • QD LED
  • Nanoparticles
  • solar cell prepared by solution processes
  • Spectromicroscopy
  • field enhancement
  • Photocatalyst
  • oriented polymer film
  • Mechanochemical reaction
  • 2D semiconductors

Affiliated Academic Societies

  • The chemical society of Japan
  • The Japan society of Applied physics
  • Material research society
  • European material research society
  • The Society of Nano Science and Technology

Educational Activity

Course in Charge

  1. 2021, Undergraduate Education, 2Term, Photochemistry of Condensed Matter
  2. 2021, Undergraduate Education, First Semester, Special Study for Graduation
  3. 2021, Undergraduate Education, Second Semester, Special Study for Graduation
  4. 2021, Graduate Education (Master's Program) , First Semester, Photochemistry of Advanced Material(Seminar)
  5. 2021, Graduate Education (Master's Program) , Second Semester, Photochemistry of Advanced Material(Seminar)
  6. 2021, Graduate Education (Doctoral Program) , First Semester, Seminar in Chemical
  7. 2021, Graduate Education (Doctoral Program) , Second Semester, Seminar in Chemical
  8. 2021, Graduate Education (Master's Program) , First Semester, Seminar in Chemical
  9. 2021, Graduate Education (Master's Program) , Second Semester, Seminar in Chemical
  10. 2021, Graduate Education (Doctoral Program) , First Semester, Photochemistry of Advanced Material(Seminar)
  11. 2021, Graduate Education (Doctoral Program) , Second Semester, Photochemistry of Advanced Material(Seminar)
  12. 2021, Graduate Education (Master's Program) , 1Term, Introduction to Physical Chemistry
  13. 2021, Graduate Education (Master's Program) , 2Term, Exercises in Chemistry A
  14. 2021, Graduate Education (Master's Program) , 4Term, Exercises in Chemistry B
  15. 2021, Graduate Education (Master's Program) , Academic Year, Master's Thesis in Chemistry
  16. 2021, Graduate Education (Doctoral Program) , Academic Year, Doctoral Thesis in Chemistry

Research Activities

Academic Papers

  1. Enhancement of Out-of-plane Mobility in P3HT Film by Rubbing: Aggregation and Planarity Enhanced with Low Regioregularity, JOURNAL OF PHYSICAL CHEMISTRY C, 119(15), 7987-7995, 2015
  2. Enhancement of fluorescence intensity by silicon particles and its size effect, CHEMICAL COMMUNICATIONS, 50(9), 1137-1140, 2014
  3. 130-fold enhancement of TiO2 photocatalytic activities by ball milling, APPLIED PHYSICS LETTERS, 103(3), 2013
  4. Investigation of attractive and repulsive interactions associated with ketones in supercritical CO2, based on Raman spectroscopy and theoretical calculations, JOURNAL OF CHEMICAL PHYSICS, 139(5), 2013
  5. One-pot facile synthesis of a concentrated Si nanoparticle solution, CHEMICAL COMMUNICATIONS, 49(87), 10302-10304, 2013
  6. Si quantum dots with a high absorption coefficient: Analysis based on both intensive and extensive variables, APPLIED PHYSICS LETTERS, 103(15), 2013
  7. White-Light-Emitting Silicon Nanocrystal Generated by Pulsed Laser Ablation in Supercritical Fluid: Investigation of Spectral Components As a Function of Excitation Wavelengths and Aging Time, JOURNAL OF PHYSICAL CHEMISTRY C, 116(6), 3928-3934, 2012
  8. Fractal of Gold Nanoparticles Controlled by Ambient Dielectricity: Synthesis by Laser Ablation as a Function of Permittivity, JOURNAL OF PHYSICAL CHEMISTRY C, 116(32), 17252-17258, 2012
  9. In situ multipurpose time-resolved spectrometer for monitoring nanoparticle generation in a high-pressure fluid, REVIEW OF SCIENTIFIC INSTRUMENTS, 83(7), 2012
  10. Significant substitution effects in dipolar and non-dipolar supercritical fluids, JOURNAL OF CHEMICAL PHYSICS, 134(23), 2011
  11. Solute-Solvent Intermolecular Interactions in Supercritical Xe, SF6, CO2, and CHF3 Investigated by Raman Spectroscopy: Greatest Attractive Energy Observed in Supercritical Xe, JOURNAL OF PHYSICAL CHEMISTRY B, 114(26), 8659-8666, 2010
  12. Site-Selective Solvation in Supercritical CO2 Observed by Raman Spectroscopy: Phenyl Group Leads to Greater Attractive Energy than Chloro Group, JOURNAL OF PHYSICAL CHEMISTRY B, 114(50), 16832-16837, 2010
  13. Spectrum of Excess Partial Molar Absorptivity. I. Near Infrared Spectroscopic Study of Aqueous Acetonitrile and Acetone, JOURNAL OF PHYSICAL CHEMISTRY B, 113(35), 11928-11935, 2009
  14. Solvation Structures of cis- and trans-1,2-Dichloroethylene in Supercritical CO2 Investigated by Raman Spectroscopy and Attractive Energy Calculations, JOURNAL OF PHYSICAL CHEMISTRY B, 113(40), 13291-13299, 2009
  15. Difference of solute-solvent interactions of cis- and trans-1,2-dichloroethylene in supercritical CO2 investigated by Raman spectroscopy, JOURNAL OF PHYSICAL CHEMISTRY B, 112(27), 7980-7983, 2008
  16. Development of a polarized Raman spectrometer for supercritical fluids having high critical points, JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 45(4A), 2801-2806, 2006
  17. Time evolution of density fluctuation in supercritical region. I. Non-hydrogen-bonded fluids studied by dynamic light scattering, JOURNAL OF PHYSICAL CHEMISTRY A, 109(1), 83-91, 2005
  18. Silicon nanoclusters selectively generated by laser ablation in supercritical fluid, JOURNAL OF PHYSICAL CHEMISTRY B, 109(9), 3731-3733, 2005
  19. Attractive and repulsive interactions among methanol molecules in supercritical state investigated by Raman spectroscopy and perturbed hard-sphere theory, JOURNAL OF CHEMICAL PHYSICS, 122(10), 2005
  20. Time evolution of density fluctuation in the supercritical region. 2. Comparison of hydrogen- and non-hydrogen-bonded fluids, JOURNAL OF PHYSICAL CHEMISTRY A, 109(33), 7365-7370, 2005
  21. Dynamics of density fluctuation of supercritical fluid mapped on phase diagram, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 126(2), 422-423, 2004
  22. Attractive and repulsive intermolecular interactions of a polar molecule: Short-range structure of neat supercritical CHF3 investigated by Raman spectroscopy, JOURNAL OF PHYSICAL CHEMISTRY A, 108(27), 5770-5784, 2004
  23. Phototriggered self-assembly of hydrogen-bonded rosette, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 126(37), 11500-11508, 2004
  24. How are hydrogen bonds perturbed in aqueous NaClO4 solutions depending on the concentration?: A near infrared study of water, JOURNAL OF SOLUTION CHEMISTRY, 33(6-7), 689-698, 2004
  25. Local density enhancement in neat supercritical fluid due to attractive intermolecular interactions, CHEMICAL PHYSICS LETTERS, 368(1-2), 209-214, 2003
  26. Static inhomogeneity of supercritical ethylene studied by small-angle X-ray scattering, CHEMICAL PHYSICS, 286(2-3), 421-430, 2003
  27. Correlation time of density fluctuation for supercritical ethylene studied by dynamic light scattering, JOURNAL OF CHEMICAL PHYSICS, 116(12), 4985-4992, 2002
  28. Terahertz absorption spectra of supercritical CHF3 to investigate local structure through rotational and hindered rotational motions, CHEMICAL PHYSICS LETTERS, 341(1-2), 86-92, 2001
  29. Nanosecond photo-fusion of microcrystals on a polymer film observed with time-resolved ultramicroscopy, JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 145(3), 159-164, 2001
  30. Study of inhomogeneity of supercritical water by small-angle x-ray scattering, JOURNAL OF CHEMICAL PHYSICS, 112(9), 4203-4211, 2000
  31. Raman spectral changes of neat CO2 across the ridge of density fluctuation in supercritical region, CHEMICAL PHYSICS LETTERS, 320(3-4), 323-327, 2000
  32. Supercritical-fluid cell with device of variable optical path length giving fringe-free terahertz spectra, REVIEW OF SCIENTIFIC INSTRUMENTS, 71(11), 4061-4064, 2000
  33. Effect of hydrogen bonding on laser-induced transfer of 1-pyrenebutyric acid in solid polymers, CHEMICAL PHYSICS LETTERS, 291(3-4), 433-437, 1998
  34. Formation of benzene dimer cations in neat liquid benzene studied by femtosecond transient absorption spectroscopy, CHEMICAL PHYSICS LETTERS, 269(3-4), 298-304, 1997
  35. Photochemical, hydrogen abstraction in benzophenone single crystal, MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 276, A125-A133, 1996
  36. Ultrafast dynamics of photoexcited trans-1,3,5-hexatriene in solution by femtosecond transient absorption spectroscopy, CHEMICAL PHYSICS LETTERS, 256(6), 629-634, 1996
  37. Photo-induced reactions of CH2I2 in solution studied by the ultrafast transient absorption spectroscopy, CHEMICAL PHYSICS LETTERS, 262(5), 621-626, 1996
  38. TRIPLET EXCITON ABSTRACTS HYDROGEN FROM DIPHENYLMETHANE DOPED IN BENZOPHENONE CRYSTAL, CHEMICAL PHYSICS LETTERS, 229(3), 323-327, 1994
  39. Development of a Polarized Raman Spectrometer for Supercritical Fluids Having High Critical Points, Jpn J Appl Phys, 45(4), 2801-2806, 20060415
  40. Local Structure of Supercritical Fluids Investigated by Translational, Rotational, and Vibrational Motions, The Review of High Pressure Science and Technology, 16(2), 120-130, 20060520
  41. 6. Photofunctional Nanomaterials Generated by Pulsed Laser Ablation in Supercritical Fluids(Plasmas in Supercritical Fluids -Fundamentals and Applications-), Journal of plasma and fusion research, 86(6), 328-332, 20100625
  42. Light emitting silicon nanocrystals in the three primary colors, Function & materials, 29(11), 73-81, 200911
  43. Pulsed laser ablation of solids in supercritical fluids: generation of novel advanced nanomaterials, Jasco report, 52(0), 10-16, 201003
  44. Photofunctional nanoparticles fabricated by laser synthesis method in multi-extreme field, 61(8), 615-621, 201008
  45. Dynamics of density fluctuation of supercritical fluid mapped on phase diagram., Journal of the American Chemical Society, 126(2), 2004
  46. Phototriggered self-assembly of hydrogen-bonded rosette., Journal of the American Chemical Society, 126(37), 2004
  47. Time evolution of density fluctuation in the supercritical region. 2. Comparison of hydrogen- and non-hydrogen-bonded fluids., The journal of physical chemistry. A, 109(33), 2005
  48. Time evolution of density fluctuation in supercritical region. I. Non-hydrogen-bonded fluids studied by dynamic light scattering., The journal of physical chemistry. A, 109(1), 2005
  49. Silicon nanoclusters selectively generated by laser ablation in supercritical fluid., The journal of physical chemistry. B, 109(9), 2005
  50. Attractive and repulsive interactions among methanol molecules in supercritical state investigated by Raman spectroscopy and perturbed hard-sphere theory., The Journal of chemical physics, 122(10), 2005
  51. Photodissociation of CH2I2 and subsequent electron transfer in solution., Chemistry, an Asian journal, 3(4), 2008
  52. Spectrum of excess partial molar absorptivity. I. Near infrared spectroscopic study of aqueous acetonitrile and acetone., The journal of physical chemistry. B, 113(35), 2009
  53. Solvation structures of cis- and trans-1,2-dichloroethylene in supercritical CO2 investigated by Raman spectroscopy and attractive energy calculations., The journal of physical chemistry. B, 113(40), 2009
  54. Site-selective solvation in supercritical CO2 observed by Raman spectroscopy: phenyl group leads to greater attractive energy than chloro group., The journal of physical chemistry. B, 114(50), 2010
  55. Solute-solvent intermolecular interactions in supercritical Xe, SF6, CO2, and CHF3 investigated by Raman spectroscopy: greatest attractive energy observed in supercritical Xe., The journal of physical chemistry. B, 114(26), 2010
  56. Significant substitution effects in dipolar and non-dipolar supercritical fluids., The Journal of chemical physics, 134(23), 2011
  57. In situ multipurpose time-resolved spectrometer for monitoring nanoparticle generation in a high-pressure fluid., The Review of scientific instruments, 83(7), 2012
  58. One-pot facile synthesis of a concentrated Si nanoparticle solution., Chemical communications (Cambridge, England), 49(87), 2013
  59. Investigation of attractive and repulsive interactions associated with ketones in supercritical CO2, based on Raman spectroscopy and theoretical calculations., The Journal of chemical physics, 139(5), 2013
  60. Enhancement of fluorescence intensity by silicon particles and its size effect., Chemical communications (Cambridge, England), 50(9), 2014
  61. Si-nanocrystal/P3HT hybrid films with a 50- and 12-fold enhancement of hole mobility and density: films prepared by successive drop casting., Nanoscale, 7(38), 2015
  62. Solvation of Esters and Ketones in Supercritical CO2., The journal of physical chemistry. B, 120(4), 2016
  63. Local Structure of Supercritical Fluids and Nanomaterials Synthesis, The Review of High Pressure Science and Technology, 25(3), 215-224, 2015
  64. Nanoparticles Synthesized by Pulsed Laser in Supercritical State and Application to Optoelectrical Devices, 24(1), 24-28, 201702