Academic career
| 1994.3 | Graduated from Dr. Course, Kyoto University
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| 1994.3 | Ph. D. (D. Eng.), Kyoto University
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| 1994.4-2003.9 | Assistant Professor, Kyoto University, Institute for Chemical Research
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| 2003.10-2009.6 | Associate Professor, Kyoto University, Institute for Chemical Research
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| 2009.7- | Professor, Kyoto University, Institute for Chemical Research
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Research field
Polymer Material Chemistry, Solid-State NMR, Organic LED
Current research
- Structures and Light-Emitting Properties of Amorphous Materials
- Development of Solid-State NMR Methodologies
- Structures and Dynamics of Disordered Polymeric Materials
Selected publications
- T. Yamada, T. Sato, K. Tanaka and H. Kaji, Percolation Paths for Charge Transports in N,N’-diphenyl-N,N’-di(m-tolyl)benzidine (TPD) Organic Electronics in press, ().
- Hideaki Kimura, Hidehiko Dohi, Marina Kotani, Takanobu Matsunaga, Kazuo Yamauchi, Hironori Kaji, Hiromichi Kurosu, and Tetsuo Asakura, Molecular Dynamics and Orientation of Stretched Rubber by Solid-State 13C NMR Polymer Journal in press, ().
- T. Yamada and H. Kaji, Planarity of triphenylamine moieties of a typical hole-transport material for OLEDs, N,N’-diphenyl-N,N’-di(m-tolyl)benzidine (TPD), in the amorphous state Journal of Molecular Structure 927, 82-87 (2009).
- A. Saito, T. Miyajima, M. Nakashima, T. Fukushima, H. Kaji, Y. Matano and H. Imahori, Acenaphtho[1,2-c]phosphole P-Oxide: A Phosphole-Naphthalene π-Conjugated System with High Electron Mobility
Chemistry-a European Journal 15, 10000-10004 (2009).
- Y. Nishiyama, T. Fukushima, K. Takami, Y. Kusaka, Y. T. and H. Kaji, Characterization of local structures in amorphous and crystalline tris(8-hydroxyquinoline) aluminum(III) (Alq3) by solid-state 27
Al MQMAS NMR spectroscopy Chemical Physics Letters 471, 80-84 (2009).
- T. Sato, K. Shizu, T. Kuga, K. Tanaka, H. Kaji, Electron-Vibration Interactions in Carrier-Transport Material: Vibronic Coupling Density Analysis in TPD Chem. Phy. Lett. 458, 152-156 (2008).
- Y. Matano, T. Miyajima, T. Fukushima, H. Kaji, Y. Kimura, H. Imahori, Comparative Study of the Synthesis, Structures, and Optical and Electrochemical Properties of Bithiophene-Fused Benzo[c]phospholes Chem. Eur. J. 14, 8102-8115 (2008).
- Y. Kusaka, S. Nakamura, K. Azuma, T. Sasaki, T. Unate, Y. Nakatani, A. Nakasuga, K. Matsukawa, N. Watanabe, H. Naito, H. Kaji, Relationship between Resistivity and Structure of Photosensitive Organic Silsesquioxanes by Impedance Spectroscopy and Solid-State 29Si NMR, Jpn. J. Appl. Phys. 47, 1377-1381 (2008).
- T. Yamada, H. Kaji, Geometric and Electronic Structures of a Hole-Transport Material, TPD, Studied by DFT Calculations and Solid-State NMR Proceedings of SPIE 7051, [705104-1]-[705104-7] (2008).
- H. Imahori, M. Ueda, S. Kang, H. Hayashi, S. Hayashi, H. Kaji, S. Seki, A. Saeki, S. Tagawa, T. Umeyama, Y. Matano, K. Yoshida, S. Isoda, M. Shiro, N. V. Tkachenko, H. Lemmetyinen, Effects of Porphyrin Substituents on Film Structure and Photoelectrochemical Properties of Porphyrin/Fullerene Composite Clusters Electrophoretically Deposited on Nanostructured SnO2 Electrodes Chem. Eur. J. 13, 10182-10193 (2007).
- H. Kaji and F. Horii, Investigation of Dynamics of Poly(dimethylsilane) in the Mesophase by Solid-State 29Si NMR: Evidence for Rotator Phase Macromolecules 40, 5420-5423 (2007).
- H. Dohi, H. Kimura, M. Kotani, T. Matsunaga, K. Yamauchi, H. Kaji, and T. Asakura, Characterization of Molecular Orientation of Stretched Natural Bubber by Solid-State 13C NMR Polym. J. 39, 502-503 (2007).
- M. Kotani, H. Dohi, H. Kimura, K. Muraoka, and H. Kaji, Characterization of Carbon Filler Distribution Ratio in Polyisoprene / Polybutadiene Rubber Blends by High-Resolution Solid-State 13C NMR Macromolecules 40, 9451-9454 (2007).
- M. Takahashi, T. Maeda, K. Uemura, J. Yao, Y. Tokuda, T. Yoko, H. Kaji, A. Marcelli, and P. Innocenzi, Photo-induced formation of wrinkled microstructures with long-range order in thin oxide film Adv. Mater. 19, 4343-4346 (2007).
- H. Kaji, T. Fukushima, K. Takami, and Y. Kusaka, Origin of the different emission wavelengths in Alq3 analyzed by solid-state NMR Proceedings of SPIE 6655, [665504-1]-[665504-10] (2007).
- Kaji H, Kusaka Y, Onoyama G, Horii F, CP/MAS 13C NMR characterization of the isomeric states and intermolecular packing in tris(8-hydroxyquinoline) aluminum(III) (Alq3) Journal of the American Chemical Society 128, 4292-4297 (2006).
- Chaiyut N, Amornsakchai T, Kaji H, Horii F, Solid-state 13C NMR investigation of the structure and dynamics of highly drawn polyethylene - detection of the oriented non-crystalline component Polymer 47, 2470-2480 (2006).
- Oishi Y, Watanabe H, Kanaya T, Kaji H, Horii F, Dynamics of monofunctional polybutadienyl lithium chains aggregated in benzene Polymer Journal 38, 277-288 (2006).
- Kaji H, Kusaka Y, Onoyama G, Horii F, Relation between Light-Emitting Properties and Different Isomers in Polymorphs of Tris(8-hydroquinoline) Aluminum(III) (Alq3) Analyzed by Solid-State 27Al NMR and DFT Calculations Japanese Journal of Applied Physics 44, 3706-3711 (2005).
- Kaji H, Yamada T, Tsukamoto N, Horii F, A combined experimental and theoretical study of the conformation of N,N'-diphenyl-N,N'-di(m-tolyl)benzidine (TPD) using solid-state 15N NMR and DFT calculations Chemical Physics Letters 401, 246-253 (2005).
- Murakami M, Ishida H, Kaji H, Horii F, Solid-State 13C NMR Studies of the Structure and Chain Conformation of Thermotropic Liquid Crystalline Polyether Crystallized from the Liquid Crystalline Glassy Phase Polymer Journal 36, 403-412 (2004).
- Murakami M, Ishida H, Kaji H, Horii F, Tokita M, Watanabe J, Solid-State 13C NMR Analysis of the Crystalline-Noncrystalline Structure and Chain Conformation of Thermotropic Liquid Crystalline Polyester Polymer Journal 36, 830-840 (2004).
- Kaji H, Fuke K, Horii F, Two-Dimensional 13C Magic Angle Turning NMR Analyses of Dynamics in Poly(2-hydroxypropyl ether of bisphenol-A) Macromolecules 36, 4414-4423 (2003).
- Kaji H, Miura N, Schmidt-Rohr K, Rotational Motions in Atactic Poly(acrylonitrile) Studied by One- and Two-Dimensional 15N Solid-State NMR and Dielectric Measurements Macromolecules 36, 6100-6113 (2003).
- Kaji H, Horii F, Sine-Molulated Two-Dimensional Pure Exchange Solid-State NMR as a Tool for Characterizing Dynamics in Solids Chem. Phys. Lett. 377, 322-328 (2003).
- Masuda K, Adachi M, Hirai A, Yamamoto H, Kaji H, Horii F, Solid-State 13C and 1H Spin Diffusion NMR Analyses of the Microfibril Structure for Bacterial Cellulose Solid State Nuclear Magnetic Resonance 23, 198-212 (2003).
- Watanabe H, Oishi Y, Kanaya T, Kaji H, Horii F, Rheology of Living Bifunctional Polybutadienyl Dilithium Chains in Benzene: Viscoelastic Evaluation of Aggregate Lifetime Macromolecules 36, 220-228 (2003).
- Miwa Murakami, Hiroyuki Ishida, Masayuki Miyazaki, Hironori Kaji, and Fumitaka Horii, Studies of the Phase Transitions, Structure, and Dynamics for Main-Chain Thermotropic Liquid Crystalline Polyethers and Polyurethanes with the Same Mesogen and Spacer Units Macromolecules 36, 4160-4167 (2003).
- Kaji H, Schmidt-Rohr K, Selective Observation and Quantification of AmorphousTrans Conformers in Doubly 13C-Labeled Poly(ethylene terephthalate), PET, by Zero-Quantum Magic-Angle-Spinning Solid-State NMR Macromolecules 35, 7993-8004 (2002)
- Kaji H, Horii F, Structure and Dynamics of PET in the Partially Crystalline and Glassy States as Studied by Solid-State 13C and 2H NMR Spectroscopy Handbook of Thermoplastic Polyesters, ed. Fakirov S, Wiley-VCH: Weinheim 1, 253-288 (2002)
- Kaji H, Horii F, Characterization of Specific Interactions in Polymers by an MAS NMR Method Without Irradiating Passive Spins Proceedings of the Sixth International Symposium Organized by ICR,The Science and Technology of Polymer Assembly: The Global Strategy in 21st Century , 123-126 (2002)
- Kaji H, Determination of Ca Chemical Shift Tensor Orientation in Peptides by Dipolar-Modulated Chemical Shift Recoupling NMR Spectroscopy Kobunshi, High Polymers, Japan 51, 452 (2002)
- KajiH,TaiT,HoriiF, One- and Two-Dimensional MAS 13C NMR Analyses of Molecular Motions in Poly(2-hydroxypropyl Ether of Bisphenol-A) Macromolecules 34, 6318-6324 (2001).
- KajiH,Schmidt-RohrK, Conformation and Dynamics of Atactic Poly(acrylonitrile). 3.Characterization of Local Structure by Two-Dimensional 2H-13C Solid-State NMR Macromolecules 34, 7382-7391 (2001).
- KajiH,Schmidt-RohrK, Conformation and Dynamics of Atactic Poly(acrylonitrile). 2.Torsion Angle Distributions in Meso Dyads from Two-Dimensional Solid-State Double-Quantum 13C NMR Macromolecules 34, 7368-7381 (2001).
- MasudaK,KajiH,HoriiF, Solid-State 13C NMR and 1H CRAMPS Investigations of the Hydration Process and Hydrogen Bonding for Poly(vinyl alcohol) Films Polymer Journal 33, 356-362 (2001).
- MasudaK,KajiH,HoriiF, Studies on Different Types of Hydrogen Bonds in Poly(vinyl alcohol) Films by 1H CRAMPS and Solid-State Two-Dimensional 1H-13C Heteronuclear Correlation Analyses Polymer Journal 33, 190-198 (2001).
- KajiH,Schmidt-RohrK, Conformation and Dynamics of Atactic Poly(acrylonitrile). 1.Trans/Gauche Ratio from Double-Quantum Solid-State 13C NMR of the Methylene Groups Macromolecules 33, 5169-5180 (2000).
- Kuwabara K, Kaji H, Tsuji M, Horii F, Crystalline-Noncrystalline Structure and Chain Diffusion Associated with the 180o Flip Motion for Polyethylene Single Crystals As Revealed by Solid-State 13C NMR Analyses Macromolecules 33, 7093-7100 (2000).
- KuwabaraK,KajiH,HoriiF, Solid-State 13C NMR Analyses for the Structure and Molecular Motion in thea Relaxation Temperature Region for Metallocene-Catalyzed Linear Low-Density Polyethylene Macromolecules 33, 4453-4462 (2000).
- MasudaK,KajiH,HoriiF, CP/MAS 13C NMR Analyses of Hydrogen Bonding and the Chain Conformation in the Crystalline and Noncrstalline Regions for Poly(vinyl alcohol) Films Journal of Polymer Science, Polymer Physics Edition 38, 1-9 (2000).
- MasudaK,KajiH,HoriiF, 1H CRAMPS Measurements of Different Types of OH Groups in Poly(vinyl alcohol) Films Polymer Journal 31, 105-107 (1999).
- ShenY,KajiH,HoriiF, An Exact Solution of a MAS FID in Two-Site Exchange Problem Chinese Journal of Magnetic Resonance 16, 485-493 (1999).
- KajiH,HoriiF, Analyses of the Local Order in Poly(ethylene terephthalate) in the Glassy State by Two-Dimensional Solid-State 13C Spin Diffusion Nuclear Magnetic Resonance Spectroscopy Journal of Chemical Physics 109, 4651-4658 (1998).
- ShenY,KajiH,HoriiF, An Analytical Expression of Magic Angle Spinning Nuclear Magnetic Resonance Free Induction Decays in Two-Site Exchange Problems Chinese Physical Letter 5, 453-454 (1998).
- HoriiF,KajiH,IshidaH,KuwabaraK,MasudaK,TaiT, Solid-State NMR Analyses of the Structure and Dynamic of Polymers in the Different States Journal of Molecular Structure 441, 303-311 (1998).
- KuwabaraK,KajiH,HoriiF,BassettD C,OlleyR H, Solid-State 13C NMR Analyses of the Crystalline-Noncrystalline Structure for Metallocene-Catalyzed Linear Low-Density Polyethylene Macromolecules 30, 7516-7521 (1997).
- KajiH,HoriiF, One- and Two-Dimensional Solid-State 13C NMR Analyses of the Solid Structure and Molecular Motion of Poly(e-caprolactone) Isothermally Crystallized from the Melt Macromolecules 30, 5791-5798 (1997).
- IshidaH,KajiH,HoriiF, Solid-State 13C NMR Analyses of the Structure and Chain Conformation of Thermotropic Liquid Crystalline Polyurethane Crystallized from the Melt through the Liquid Crystalline State Macromolecules 30, 5799-5803 (1997).
- HoriiF,MasudaK,KajiH, CP/MAS 13C NMR Spectra of Frozen Solutions of Poly(vinyl alcohol) with Different Tacticities Macromolecules 30, 2519-2520 (1997).
- KajiH,NakanishiK,SogaN, Formation of Porous Gel Morphology by Phase Separation in Gelling Alkoxy-Derived Silica.Phenomenological Study Journal of Non-Crystalline Solids 185, 18-30 (1995).
- KajiH,NakanishiK,SogaN, Formation of Porous Gel Morphology by Phase Separation in Gelling Alkoxy-Derived Silica.Affinity between Silica Polymers and Solvent Journal of Non-Crystalline Solids 181, 16-26 (1995).
- KajiH,NakanishiK,SogaN,InoueT,NemotoN, In Situ Observation of Phase Separation Processes in Gelling Alkoxy-Derived Silica System by Light Scattering Method Journal of Sol-Gel Science and Technology 3, 169-187 (1994).
- NakanishiK,YamasakiY,KajiH,SogaN,InoueT,NemotoN, Phase Separation Kinetics in Silica Sol-Gel System Containing Polyethylene Oxide.I. Initial Stage Journal of Sol-Gel Science and Technology 2, 227-231 (1994).
- KajiH,NakanishiK,SogaN, Polymerization-Induced Phase Separation in Silica Sol-Gel System Containing Formamide Journal of Sol-Gel Science and Technology 1, 35-46 (1993).
- KajiH,NakanishiK,SogaN,HoriiF, Modification of Nanometer Range Pores in Silica Gels with Interconnected Macropores by Solvent Exchange Journal of Non-Crystalline Solids 145, 80-84 (1992).
- DunbarM G,Schmidt-RohrK,KajiH,SandstromD, Segmental Structure of Atactic Polystyrene and Poly(ethylene terephthalate) Studied by Double-Quantum NMR International Symposium, NMR Spectroscopy of Polymers , 28 (1999).
- KajiH,Schmidt-RohrK, Double-Quantum and Exchange NMR Studies of Structure and Dynamics of Atactic Poly(acrylonitrile) International Symposium, NMR Spectroscopy of Polymers , 34 (1999).
- KajiH,DunbarM G,HarrisD J,RuppJ,ZimmermannH,Schmidt-RohrK, Homonuclear Double-Quantum NMR Investigations of Polymer Packing 40th Experimental Nuclear Magnetic Resonance Conferences , 98 (1999).
- MasudaK,KajiH,HoriiF, 1H CRAMPS and CP/MAS 13C NMR Studies of Hydrogen Bonding of Polymers in the Different States 40th Experimental Nuclear Magnetic Resonance Conferences , 166 (1999).
- KajiH,TaiT,HoriiF, Two-Dimensional solid-state NMR Analyses of Medium-range Molecular Motion of Polymers Proceedings of Society of Solid-State NMR and Materials 21, 35-39 (1997).
- HoriiF,KajiH,IshidaH,KuwabaraK,MasudaK, Structure and Dynamics of Polymers in the different States as Studied by Solid State NMR Spectroscopy Proceedings of the First International Symposium Organized by ICR, Controlled Organization and Molecular Dynamics of Polymers , 118-123 (1996).
- KajiH,ShenY,TaiT,HoriiF, Solid State 13C NMR Analyses of the Medium-Frequency Molecular Motion of Solid Polymers Proceedings of the First International Symposium Organized by ICR, Controlled Organization and Molecular Dynamics of Polymers , 124-127 (1996).
- KajiH,NakanishiK,SogaN, Preparation of Porous Silica Gels with Micrometer-Range Interconnected Structures from Trifunctional and Tetrafunctional Silanes Proceedings of the International Conference on Science and Technology of New Glasses 21, 93-98 (1991).
- KajiH, Determination of Chemical Shift Tensor Orientation in Peptides Ca-Carbon by Dipolar-Modulated Chemical Shift Recoupling NMR Kobunshi 51, 452 (2002).
- KajiH, Conformational Analysis of Glassy Polystyrene by Two-Dimensional Solid-State 2H/13C-13C HMQC NMR Method Kobunshi 50, 730-731 (2001).
- KajiH, Host-Guest Complex Structure and Dynamics of a Molecular Tweezer: Synthesis, Solid-State NMR, and Quantum-Chemical Calculations Kobunshi 50, 147 (2001).
- KajiH,TaiT,HoriiF, Solid-State NMR Analyses of Noncrystalline Structure and Relaxation of Glassy Polymers Koubunshi 47, 316-317 (1998).
- KajiH, Analyses of Conformation and Local Structure of Polymers by Solid-State Two-Dimensional NMR Method Kaigai Kobunshi Kenkyu 43, 107-108 (1997).
- HoriiF,KajiH, Handbook of Thermoplastic Polyesters Structure and Dynamics of PET in the Partially Crystalline and Glassy States as Studied by Solid-State 13C and 2H NMR Spectroscopy, 253-288 (2002).
- NakanishiK,KajiH,SogaN, Ceramic Transaction Macropore Structure Design of Sol-Gel Derived Silica by Spinodal Decomposition, 51-60 (1993).
- Tai T, Kaji H, Horii F, Solid-State NMR Analyses of the Molecular Motion of Polymers in the Glassy State Proceedings of the Society of Solid-State NMR and Materials, Special Issue of the 10 Year-Anniversary Symposium 20, 98-99 (1996).
- Horii F, Kaji H, Kuwabara K, Masuda K, Solid-State NMR Analyses of Structure and Dynamics of Polymers in the Different States Proceedings of the Society of Solid-State NMR and Materials, Special Issue of the 10 Year-Anniversary Symposium 20, 21-26 (1996).
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