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T. Tsuchiya, M. Ishijima, K. Kajihara, “High yield synthesis of octahedral hexanuclear rare-earth clusters using alkylamines,” J. Ceram. Soc. Jpn. 133, 60-64 (2025). Open Access [ DOI | url | pdf ]
M. Ishijima, A. Omata, K. Kanamura, T. Mandai, X. Ye, T. Ichitsubo, K. Kajihara, “Oxalate-assisted Fe2O3 surface functionalization of nanosized MgMn2O4 and α-MnO2 cathodes for rechargeable magnesium batteries,” RSC Appl. Interfaces 2, 179-184 (2025). Open Access [ DOI ]
H. Koreeda, M. Ishijima, K. Kajihara, “Cosolvent-free sol–gel synthesis of macroporous silica gels from tetramethoxysilane–tetraethoxysilane mixtures,” J. Sol–Gel Sci. Technol. 113, 48-55 (2025). Open Access [ DOI ]
H. Itakura, M. Ishijima, K. Kajihara, “Fast proton conductors for low humidity: hydrophilic sulfonated and phosphonated polysilsesquioxanes with Al–O–P crosslinks,” Chem. Commun. 60, 5683-5686 (2024). [ DOI ]
T. Yoshida, M. Ishijima, S. Yoshida, A. Koike, K. Kajihara, “Synthesis of poly(methylsilsesquioxane-co-dimethylsiloxane) liquids and deep-ultraviolet transparent elastic resins through co-solvent-free water-rich hydrolytic polycondensation of organoalkoxysilanses,” Polym. Chem. 15, 1937-1941 (2024). [ DOI ]
Y. Shimbori, S. Ooga, K. Kajihara, K. Kanamura, “Effect of polybenzimidazole addition to three-dimensionally ordered macroporous polyimide separators on mechanical properties and electrochemical performances,” Electrochemistry 92, 027008 (2024). Open Access [ DOI ]
S. Yoshino, H. Arima, M. Ishijima, K. Kajihara, “Crystal structures of the alkali aluminoboracites A4B4Al3O12Cl (A = Li, Na),” Acta. Cryst. E 80, 169-173 (2024). Open Access [ DOI ]
K. Kajihara, S. Nakagawa, R. Nakagawa, M. Suda, M. Ishijima, H. Kuriyama, I. Serizawa, “Temperature dependence of narrow-band UVB photoluminescence of silica–(Gd,Pr)PO4 transparent glass-ceramic phosphors,” J. Phys: Condens. Matter 36, 085301 (2024). [ DOI ]
Y. Shimbori, K. Nishikawa, K. Kajihara, K. Kanamura, “Application of 3DOM PI separator to Li metal battery with highly concentrated ionic liquid electrolyte,” Electrochemistry 91, 127003 (2023). Open Access [ DOI ]
K. Kajihara, R. Suzuki, R. Seto, H. Itakura, M. Ishijima, “Poly(cyclohexylsilsesquioxane)-based hydrophilic thermoset-resistant deep-ultraviolet-transparent glasses with low melting temperatures,” ACS Appl. Mater. Interfaces 15, 31880-31887 (2023). [ DOI ]
H. Arima, N. Tezuka, M. Ishijima, K. Kanamura, K. Kajihara, “Lithium-ion-conducting glass-ceramics of a boron-containing alkali sodalite Li8B6Si6O24Cl2,” J. Ceram. Soc. Jpn. 131, 291-297 (2023). Open Access [ DOI | url | pdf ]
K. Kajihara, M. Goto, “Cosolvent-free synthesis of macroporous silica gels and monolithic silica glasses from tetraalkoxysilane–water binary systems: comparison between tetramethoxysilane and tetraethoxysilane,” J. Sol–Gel Sci. Technol. 104, 497-502 (2022). [ DOI ]
K. Kajihara, S. Nakagawa, R. Iwasaki, “Energy transfer and quenching in sol–gel-derived silica glass green phosphors doped with Tb3+ and Ce3+ ions: Distinct difference between P- and Al-codoped glasses,” Phys. Status Solidi A 219, 2100494 (2022). [ DOI ]
T. Tsuchiya, Y. Fukuda, K. Kanamura, K. Kajihara, “Low-refractive-index deep-ultraviolet transparent poly(fluoroalkyl-co-methylsilsesquioxane) resins synthesized by cosolvent-free hydrolytic polycondensation of organotrimethoxysilanes,” J. Phys. Chem. B 125, 8238-8242 (2021). [ DOI ]
K. Kajihara, D. Takahashi, H. Kobayashi, T. Mandai, H. Imai, K. Kanamura, “Phenylphosphonate surface functionalisation of MgMn2O4 with 3D open-channel nanostructures for composite slurry-coated cathodes of rechargeable magnesium batteries operated at room temperature,” RSC Adv. 11, 19076-19082 (2021). Open Access [ DOI ]
L. Skuja, N. Ollier, K. Kajihara, I. Bite, M. Leimane, K. Smits, A. Silins, “Optical absorption of excimer laser-induced dichlorine monoxide in silica glass and excitation of singlet oxygen luminescence by energy transfer from chlorine molecules,” Phys. Status Solidi A 218, 2100009 (2021). [ DOI ]
M. Saito, H. Arima, M. Shoji, Y. Kizuki, H. Munakata, K. Kanamura, K. Kajihara, “Solid-state rechargeable lithium metal battery with Li4B4Al3O12Cl-based water-resistant lithium-ion-conducting oxychloride glass-ceramic electrolyte,” J. Electrochem. Soc. 168, 040524 (2021). [ DOI ]
R. Iwasaki, K. Kajihara, “Negligible concentration quenching in photoluminescent nanocrystals with high photoactive rare-earth concentrations: silica–(Tb,Ce)PO4 transparent glass-ceramic green phosphors,” J. Mater. Chem. C 9, 2701-2705 (2021). [ DOI ]
K. Kajihara, K. Hiruta, K. Kanamura, “Cosolvent-free sol–gel dip-coating of silica films from tetraalkoxysilane–water binary systems: precursor solutions of long pot life and their characterization by nuclear magnetic resonance spectroscopy,” J. Ceram. Soc. Jpn. 128, 772-782 (2020). Open Access [ DOI | url | pdf ]
L. Skuja, N. Ollier, K. Kajihara, “Luminescence of non-bridging oxygen hole centers as a marker of particle irradiation of α-quartz,” Radiat. Meas. 135, 106373 (2020). [ DOI ]
K. Kajihara, H. Kato, R. Takahashi, K. Kanamura, H. Mizoguchi, Y. Namatame, H. Sato, “Twinning by merohedry and thermal expansion of zeolitic clathrasil deca-dodecasil 3R,” Inorg. Chem. 59, 5600-5609 (2020). [ DOI ]
R. Seto, K. Kanamura, S. Yoshida, K. Kajihara, “Cosolvent-free synthesis and characterisation of poly(phenyl-co-n-alkylsilsesquioxane) and poly(phenyl-co-vinylsilsesquioxane) glasses with low melting temperatures,” Dalton Trans. 49, 2487-2495 (2020). [ DOI ]
K. Nakano, Y. Noda, N. Tanibata, M. Nakayama, K. Kajihara, K. Kanamura, “Computational investigation of the Mg-ion conductivity and phase stability of MgZr4(PO4)6,” RSC Adv. 9, 12590-12595 (2019). Open Access [ DOI ]
L. Skuja, N. Ollier, K. Kajihara, K. Smits, “Creation of glass-characteristic point defects in crystalline SiO2 by 2.5 MeV electrons and by fast neutrons,” J. Non-Cryst. Solids 505, 252-259 (2019). [ DOI ]
K. Kajihara, R. Seto, K. Kanamura, Y. Onodera, S. Kohara, “Structure, microscopic ordering, and viscous properties of amorphous poly(n-alkylsilsesquioxane) liquids and solids synthesized by cosolvent-free hydrolytic polycondensation of n-alkyltrimethoxysilanes,” Phys. Status Solidi A 216, 1800475 (2019). [ DOI ]
M. Suda, R. Nakagawa, K. Kanamura, K. Kajihara, “Sol–gel-derived transparent silica–(Gd,Pr)PO4 glass-ceramic narrow-band UVB phosphors,” Dalton Trans. 47, 12085-12091 (2018). [ DOI | cover ]
K. Kajihara, R. Takahashi, H. Kato, K. Kanamura, “Seed-free hydrothermal synthesis of all-silica deca-dodecasil 3R with essential reagents,” J. Ceram. Soc. Jpn. 126, 221-229 (2018). Open Access [ DOI | cover | url | pdf ]
L. Skuja, K. Kajihara, K. Smits, K. Alps, A. Silins, J. Teteris, “Luminescence properties of chlorine molecules in glassy SiO2 and optical fibre waveguides,” Proc. Est. Acad. Sci 66, 455-461 (2017). Open Access [ DOI | url | pdf ]
K. Kajihara, N. Tezuka, M. Shoji, J. Wakasugi, H. Munakata, K. Kanamura, “Li4B4M3O12Cl (M = Al, Ga): an electrochemically stable, lithium-ion-conducting cubic boracite with substituted boron sites,” Bull. Chem. Soc. Jpn. 90, 1279-1286 (2017). Open Access [ DOI | pdf ]
K. Kajihara, H. Nagano, T. Tsujita, H. Munakata, K. Kanamura, “High-temperature conductivity measurements of magnesium-ion-conducting solid oxide Mg0.5-x(Zr1-xNbx)2(PO4)3 (x = 0.15) using Mg metal electrodes,” J. Electrochem. Soc. 164, A2183-A2185 (2017). [ DOI | url ]
N. Tezuka, Y. Okawa, K. Kajihara, K. Kanamura, “Synthesis and characterization of lithium-ion-conductive glass-ceramics of lithium chloroboracite Li4+xB7O12+x/2Cl (x = 0–1),” J. Ceram. Soc. Jpn. 125, 348-352 (2017). Open Access [ DOI | url | pdf ]
L. Skuja, K. Kajihara, K. Smits, A. Silins, H. Hosono, “Luminescence and Raman detection of molecular Cl2 and ClClO molecules in amorphous SiO2 matrix,” J. Phys. Chem. C 121, 5261-5266 (2017). [ DOI ]
Y. Fukuda, K. Kajihara, S. Kakinoki, J. Jang, H. Yoshida, K. Kanamura, “Poly(n-alkylsilsesquioxane) liquids prepared by cosolvent-free hydrolytic polycondensation of n-alkyltrialkoxysilanes: effects of liquid-liquid phase separation during aging and alkyl chain length on structure and viscosity,” Dalton Trans. 45, 15532-15540 (2016). [ DOI ]
A. Sakuragi, Y. Igarashi, K. Kajihara, K. Kanamura, “Synthesis of silanol-rich long-life polysilsesquioxane liquids by cosolvent-free hydrolytic polycondensation of organotrimethoxysilanes followed by aging,” Dalton Trans. 45, 3151-3157 (2016). [ DOI ]
S. Yamaguchi, K. Moriyama, K. Kajihara, K. Kanamura, “Deep-ultraviolet transparent monolithic sol–gel derived silica–REPO4 (RE = Y, La–Lu except Pm) glass-ceramics: characterization of crystal structure and ultraviolet absorption edge, and application to narrow-band UVB phosphors,” J. Mater. Chem. C 3, 9894-9901 (2015). [ DOI ]
L. Skuja, K. Kajihara, J. Grube, H. Hosono, “Luminescence of non-bridging oxygen hole centers in crystalline SiO2,” AIP Conf. Proc. 1624, 130-134 (2014). Open Access [ DOI | pdf ]
K. Kajihara, L. Skuja, H. Hosono, “Inhomogeneous broadening and peak shift of the 7.6eV optical absorption band of oxygen vacancies in SiO2,” AIP Conf. Proc. 1624, 58-63 (2014). Open Access [ DOI | pdf ]
F. Funabiki, K. Kajihara, K. Kaneko, K. Kanamura, H. Hosono, “Characteristic coordination structure around Nd ions in sol–gel-derived Nd–Al-codoped silica glasses,” J. Phys. Chem. B 118, 8792-8797 (2014). [ DOI ]
K. Kajihara, S. Yamaguchi, K. Kaneko, K. Kanamura, “Highly transparent, bright green, sol–gel-derived monolithic silica–(Tb,Ce)PO4 glass-ceramic phosphors,” RSC Adv. 4, 26692-26696 (2014). [ DOI | url ]
K. Suzuki, K. Kajihara, K. Kanamura, “Cosolvent-free sol–gel synthesis and optical characterization of silica glasses containing LaF3 and (La,Er)F3 nanocrystals,” Bull. Chem. Soc. Jpn. 87, 765-772 (2014). Open Access [ DOI | pdf ]
K. Kajihara, L. Skuja, H. Hosono, “Diffusion and reactions of photoinduced interstitial oxygen atoms in amorphous SiO2 impregnated with 18O-labeled interstitial oxygen molecules,” J. Phys. Chem. C 118, 4282-4286 (2014). [ DOI ]
S. Agnello, L. Vaccaro, M. Cannas, K. Kajihara, “Temperature dependence of O2 singlet photoluminescence in silica nanoparticles,” J. Non-Cryst. Solids 379, 220-223 (2013). [ DOI ]
T. Mori, K. Kajihara, K. Kanamura, Y. Toda, H. Hiramatsu, H. Hosono, “Indium-based ultraviolet-transparent electroconductive oxyfluoride InOF: ambient-pressure synthesis and unique electronic properties in comparison with In2O3,” J. Am. Chem. Soc. 135, 13080-13088 (2013). [ DOI ]
Y. Igarashi, K. Kajihara, K. Kanamura, “Thiol-containing polysilsesquioxane liquid and photocurable sulfur-containing transparent organic–inorganic hybrid monoliths obtained via cosolvent-free hydrolytic polycondensation,” Bull. Chem. Soc. Jpn. 86, 880-883 (2013). [ DOI ]
K. Kajihara, L. Skuja, H. Hosono, “Formation and annihilation of intrinsic defects induced by electronic excitation in high-purity crystalline SiO2,” J. Appl. Phys. 113, 143511 (2013). [ DOI | url ]
K. Kaneko, K. Kajihara, K. Kanamura, “Cosolvent-free sol–gel synthesis of rare-earth and aluminum codoped monolithic silica glasses,” J. Ceram. Soc. Jpn. 121, 299-302 (2013). Open Access [ DOI | url | pdf ]
J.-H. Moon, H. Munakata, K. Kajihara, K. Kanamura, “Hydrothermal synthesis of manganese dioxide nanoparticles as cathode material for rechargeable batteries,” Electrochemistry 81, 2-6 (2013). Open Access [ DOI | url | pdf ]
K. Kajihara, A. Sakuragi, Y. Igarashi, K. Kanamura, “Synthesis of monolithic deep-ultraviolet-transparent polysilsesquioxane glasses from organotrimethoxysilane–water binary system,” RSC Adv. 2, 8946-8948 (2012). [ DOI | url ]
S. Nagayama, K. Kajihara, K. Kanamura, “Synthesis of nanocrystalline LaF3 doped silica glasses by hydrofluoric acid catalyzed sol–gel process,” Mater. Sci. Eng. B 177, 510-514 (2012). [ DOI ]
K. Kajihara, S. Kuwatani, K. Kanamura, “Sol–gel synthesis of rare-earth and phosphorus codoped monolithic silica glasses from a cosolvent-free phase-separating system,” Appl. Phys. Express 5, 012601 (2012). [ DOI | url ]
L. Skuja, K. Kajihara, M. Hirano, H. Hosono, “Visible to vacuum-UV range optical absorption of oxygen dangling bonds in amorphous SiO2,” Phys. Rev. B 84, 205206 (2011). [ DOI | url ]
L. Skuja, K. Kajihara, M. Hirano, A. Silins, H. Hosono, “Effects of temperature on electron paramagnetic resonance of dangling oxygen bonds in amorphous silicon dioxide,” IOP Conf. Ser.: Mater. Sci. Eng. 23, 012016 (2011). Open Access [ DOI | pdf ]
R. Maehana, S. Kuwatani, K. Kajihara, K. Kanamura, “Sol–gel synthesis of fluorine-doped silica glasses with low SiOH concentrations,” J. Ceram. Soc. Jpn. 119, 393-396 (2011). Open Access [ DOI | url | pdf ]
L. Skuja, K. Kajihara, M. Hirano, H. Hosono, “Crucial dependence of excimer laser toughness of "wet" silica on excess oxygen,” J. Non-Cryst. Solids 357, 1875-1878 (2011). [ DOI ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “Oxygen-excess amorphous SiO2 with 18O-labeled interstitial oxygen molecules,” J. Non-Cryst. Solids 357, 1842-1845 (2011). [ DOI ]
K. Kajihara, T. Miura, H. Kamioka, M. Hirano, L. Skuja, H. Hosono, “Exchange between interstitial oxygen molecules and network oxygen atoms in amorphous SiO2 studied by 18O isotope labeling and infrared photoluminescence spectroscopy,” Phys. Rev. B 83, 064202 (2011). [ DOI | url | Repository ]
S. Kuwatani, R. Maehana, K. Kajihara, K. Kanamura, “Amine-buffered phase separating tetraethoxysilane–water binary mixture: A simple precursor of sol–gel derived monolithic silica gels and glasses,” Chem. Lett. 39, 712-713 (2010). [ DOI ]
S.-W. Woo, N. Okada, M. Kotobuki, K. Sasajima, H. Munakata, K. Kajihara, K. Kanamura, “Highly patterned cylindrical Ni–Sn alloys with 3-dimensionally ordered macroporous structure as anodes for lithium batteries,” Electrochim. Acta 55, 8030-8035 (2010). [ DOI ]
K. Kajihara, T. Miura, H. Kamioka, M. Hirano, L. Skuja, H. Hosono, “Diffusion of oxygen molecules in fluorine-doped amorphous SiO2,” Mater. Sci. Eng. B 173, 158-161 (2010). [ DOI | Repository ]
K. Kajihara, S. Kuwatani, R. Maehana, K. Kanamura, “Macroscopic phase separation in a tetraethoxysilane-water binary sol–gel system,” Bull. Chem. Soc. Jpn. 82, 1470-1476 (2009). Open Access [ DOI | pdf ]
K. Kajihara, T. Miura, H. Kamioka, M. Hirano, L. Skuja, H. Hosono, “Photoluminescence study of diffusion and reactions of 18O-labeled interstitial oxygen molecules in amorphous SiO2,” ECS Trans. 25, 277-285 (2009). Open Access [ DOI | url | pdf ]
K. Kajihara, T. Miura, H. Kamioka, M. Hirano, L. Skuja, H. Hosono, “Isotope effect on the infrared photoluminescence decay of interstitial oxygen molecules in amorphous SiO2,” Appl. Phys. Express 2, 056502 (2009). [ DOI | url ]
K. Kajihara, T. Miura, H. Kamioka, M. Hirano, L. Skuja, H. Hosono, “Oxygen exchange at the internal surface of amorphous SiO2 studied by photoluminescence of isotopically labeled oxygen molecules,” Phys. Rev. Lett. 102, 175502 (2009). [ DOI | url | Repository ]
K. Kajihara, M. Hirano, H. Hosono, “Sol–gel synthesis of monolithic silica gels and glasses from phase-separating tetraethoxysilane–water binary system,” Chem. Commun. 2009, 2580-2582 (2009). [ DOI | url ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “60Co γ-ray-induced intrinsic defect processes in fluorine-doped synthetic SiO2 glasses of different fluorine concentrations,” Mater. Sci. Eng. B 161, 96-99 (2009). [ DOI ]
H. Hosono, K. Hayashi, K. Kajihara, P. V. Sushko, A. L. Shluger, “Oxygen ion conduction in 12CaO⋅7Al2O3:O2- conduction mechanism and possibility of O- fast conduction,” Solid State Ionics 180, 550-555 (2009). [ DOI ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “Intrinsic defect formation in amorphous SiO2 by electronic excitation: bond dissociation versus Frenkel mechanisms,” Phys. Rev. B 78, 094201 (2008). [ DOI | url ]
L. Skuja, K. Kajihara, M. Hirano, H. Hosono, “Hydrogen-related radiation defects in SiO2-based glasses,” Nucl. Instrum. Methods Phys. Res. B 266, 2971-2975 (2008). [ DOI ]
K. Ueda, T. Maeda, K. Nakayashiki, K. Goto, Y. Nakachi, H. Takashima, K. Nomura, K. Kajihara, H. Hosono, “Photoluminescence from epitaxial films of perovskite-type alkaline-earth stannates,” Appl. Phys. Express 1, 015003 (2008). [ DOI | url ]
K. Kajihara, S. Matsuishi, K. Hayashi, M. Hirano, H. Hosono, “Vibrational dynamics and oxygen diffusion in a nanoporous oxide ion conductor 12CaO⋅7Al2O3 studied by 18O labeling and micro-raman spectroscopy,” J. Phys. Chem. C 111, 14855-14861 (2007). [ DOI ]
L. Skuja, K. Kajihara, M. Hirano, H. Hosono, “Ultraviolet absorption of hydrogen-related species in glassy silica,” Phys. Chem. Glasses 48, 103-106 (2007). [ url ]
K. Kajihara, M. Hirano, Y. Takimoto, L. Skuja, H. Hosono, “Diffusion of nitrogen molecules in amorphous SiO2,” Appl. Phys. Lett. 91, 071904 (2007). [ DOI ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “Intrinsic point defects in fluorine-doped synthetic SiO2 glass by 60Co γ-ray irradiation,” Chem. Lett. 36, 266-267 (2007). [ DOI ]
L. Skuja, K. Kajihara, M. Hirano, H. Hosono, “Fluorine laser-induced silicon hydride Si-H groups in silica,” J. Non-Cryst. Solids 353, 526-529 (2007). [ DOI ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “Reactivity of SiCl and SiF groups in SiO2 glass with mobile interstitial O2 and H2O molecules,” J. Non-Cryst. Solids 353, 514-517 (2007). [ DOI ]
K. Kajihara, L. Skuja, M. Hirano, H. Hosono, “In situ observation of the formation, diffusion and reactions of hydrogenous species in F2-laser-irradiated SiO2 glass using a pump-and-probe technique,” Phys. Rev. B 74, 094202 (2006). [ DOI | url ]
L. Skuja, K. Kajihara, M. Hirano, A. Saitoh, H. Hosono, “An increased F2 laser damage in ”wet” silica glass due to atomic hydrogen: a new hydrogen-related E'-center,” J. Non-Cryst. Solids 352, 2297-2302 (2006). [ DOI ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “Modification of vacuum-ultraviolet absorption of SiOH groups in SiO2 glass with temperature, F2 laser irradiation, and H-D isotope exchange,” J. Non-Cryst. Solids 352, 2307-2310 (2006). [ DOI ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “Vacuum-ultraviolet optical absorption of interstitial O2 and H2O molecules in SiO2 glass,” J. Non-Cryst. Solids 352, 2303-2306 (2006). [ DOI ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “Interstitial OH radicals in F2-laser-irradiated bulk amorphous SiO2,” J. Phys. Chem. B 110, 10224-10227 (2006). [ DOI ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “Role of interstitial voids in oxides on formation and stabilization of reactive radicals: Interstitial HO2 radicals in F2-laser-irradiated amorphous SiO2,” J. Am. Chem. Soc. 128, 5371-5374 (2006). [ DOI ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “Vacuum-ultraviolet absorption of hydrogenated and deuterated silanol groups and interstitial water molecules in amorphous SiO2,” Phys. Rev. B 72, 214112 (2005). [ DOI | url ]
K. Kajihara, M. Hirano, L. Skuja, H. Hosono, “Reactions of SiCl groups in amorphous SiO2 with mobile interstitial chemical species: Formation of interstitial Cl2 and HCl molecules, and role of interstitial H2O molecules,” J. Appl. Phys. 98, 043515 (2005). [ DOI ]
K. Kajihara, H. Kamioka, M. Hirano, T. Miura, L. Skuja, H. Hosono, “Interstitial oxygen molecules in amorphous SiO2. III. Measurements of dissolution kinetics, diffusion coefficient, and solubility by infrared photoluminescence,” J. Appl. Phys. 98, 013529 (2005). [ DOI ]
K. Kajihara, H. Kamioka, M. Hirano, T. Miura, L. Skuja, H. Hosono, “Interstitial oxygen molecules in amorphous SiO2. II. The influence of common dopants (SiOH, SiF, and SiCl groups) and fictive temperature on the decay of singlet photoluminescence,” J. Appl. Phys. 98, 013528 (2005). [ DOI ]
K. Kajihara, M. Hirano, M. Uramoto, Y. Morimoto, L. Skuja, H. Hosono, “Interstitial oxygen molecules in amorphous SiO2. I. Quantitative concentration analysis by thermal desorption, infrared photoluminescence, and vacuum-ultraviolet optical absorption,” J. Appl. Phys. 98, 013527 (2005). [ DOI ]
K. Kajihara, L. Skuja, M. Hirano, H. Hosono, “Decomposition of peroxy radicals in SiO2 glass with X-rays or KrF laser light,” Phys. Status Solidi C 2, 314-317 (2005). [ DOI ]
L. Skuja, K. Kajihara, M. Hirano, H. Hosono, “Anomalously efficient creation of stable color centers in wet silica glass by high-dose fluorine-excimer laser irradiation,” Proc. ICG 20th O_14_052 (2004).
K. Kajihara, H. Kamioka, M. Hirano, T. Miura, L. Skuja, H. Hosono, “Solubility and diffusion coefficient of oxygen molecules in SiO2 glass measured by photoluminescence,” Proc. ICG 20th O_07_011 (2004).
K. Kajihara, T. Miura, H. Kamioka, M. Hirano, L. Skuja, H. Hosono, “Surface dissolution and diffusion of oxygen molecules in SiO2 glass,” J. Ceram. Soc. Jpn. 112, 559-562 (2004). Open Access [ DOI | url | pdf ]
L. Skuja, K. Kajihara, Y. Ikuta, M. Hirano, H. Hosono, “Urbach absorption edge of silica: Reduction of glassy disorder by fluorine doping,” J. Non-Cryst. Solids 345 & 346, 328-331 (2004). [ DOI ]
K. Kajihara, L. Skuja, M. Hirano, H. Hosono, “Interconversion between non-bridging oxygen hole center and peroxy radical in F2-laser-irradiated SiO2 glass,” J. Non-Cryst. Solids 345 & 346, 219-223 (2004). [ DOI ]
Y. Ikuta, K. Kajihara, M. Hirano, H. Hosono, “Correlation between oxygen-deficient center formation and volume compaction in synthetic SiO2 glass upon ArF or F2 excimer-laser irradiation,” Appl. Opt. 43, 2332-2336 (2004). [ DOI | url ]
K. Kajihara, T. Miura, H. Kamioka, M. Hirano, L. Skuja, H. Hosono, “Spontaneous oxygen loading into SiO2 glass by thermal anneal,” J. Non-Cryst. Solids 349, 205-208 (2004). [ DOI ]
K. Kajihara, L. Skuja, M. Hirano, H. Hosono, “Role of mobile interstitial oxygen atoms in defect processes in oxides: Interconversion between oxygen-associated defects in SiO2 glass,” Phys. Rev. Lett. 92, 015504 (2004). [ DOI | url ]
K. Kajihara, Y. Ikuta, M. Hirano, H. Hosono, “Effect of F2 laser power on defect formation in high-purity SiO2 glass,” J. Non-Cryst. Solids 322, 73-77 (2003). [ DOI ]
T. Suzuki, L. Skuja, K. Kajihara, M. Hirano, T. Kamiya, H. Hosono, “Electronic structure of oxygen dangling bond in glassy SiO2: The role of hyperconjugation,” Phys. Rev. Lett. 90, 186404 (2003). [ DOI | url ]
H. Mizoguchi, K. Ueda, M. Orita, S.-C. Moon, K. Kajihara, M. Hirano, H. Hosono, “Decomposition of water by a CaTiO3 photocatalyst under UV light irradiation,” Mater. Res. Bull. 37, 2401-2406 (2002). [ DOI ]
L. Skuja, M. Hirano, H. Hosono, K. Kajihara, A. Silin, “UV-induced effects in glassy silica: transformation of peroxy radical to oxygen dangling bonds,” Glass Sci. Technol. - Glastech. Ber. 75C, 24-29 (2002).
K. Kajihara, Y. Ikuta, M. Hirano, H. Hosono, “Structural alternation and defect formation in SiO2 glasses by F2 excimer laser irradiation,” Phys. Chem. Glasses 43C, 137-140 (2002).
L. Skuja, M. Hirano, K. Kajihara, H. Hosono, “Point defect creation by photochemical processes in glassy silica,” Phys. Chem. Glasses 43C, 145-148 (2002).
K. Kajihara, Y. Ikuta, M. Hirano, H. Hosono, “Power dependence of defect formation in SiO2 glass by F2 laser irradiation,” Appl. Phys. Lett. 81, 3164-3166 (2002). [ DOI ]
K. Kajihara, L. Skuja, M. Hirano, H. Hosono, “Diffusion and reactions of hydrogen in F2-laser-irradiated SiO2 glass,” Phys. Rev. Lett. 89, 135507 (2002). [ DOI | url ]
L. Skuja, K. Kajihara, T. Kinoshita, M. Hirano, H. Hosono, “The behavior of interstitial oxygen atoms induced by F2 laser irradiation of oxygen-rich glassy SiO2,” Nucl. Instrum. Methods Phys. Res. B 191, 127-130 (2002). [ DOI ]
Y. Ikuta, K. Kajihara, M. Hirano, S. Kikugawa, H. Hosono, “Effects of H2 impregnation on excimer-laser-induced oxygen-deficient and center formation in synthetic SiO2 glass,” Appl. Phys. Lett. 80, 3916-3918 (2002). [ DOI ]
H. Hosono, K. Kajihara, T. Suzuki, Y. Ikuta, L. Skuja, M. Hirano, “Vacuum ultraviolet optical absorption band of non-bridging oxygen hole centers in SiO2 glass,” Solid State Commun. 122, 117-120 (2002). [ DOI ]
H. Hosono, K. Kajihara, M. Hirano, M. Oto, “Photochemistry in phosphorus-doped silica glass by ArF laser irradiation: Crucial effect of H2 loading,” J. Appl. Phys. 91, 4121-4124 (2002). [ DOI ]
K. Kajihara, Y. Ikuta, M. Hirano, T. Ichimura, H. Hosono, “Interaction of F2 excimer laser pulses with hydroxy groups in SiO2 glass: Hydrogen bond formation and bleaching of vacuum ultraviolet absorption edge,” J. Chem. Phys. 115, 9473-9476 (2001). [ DOI ]
H. Hosono, Y. Ikuta, T. Kinoshita, K. Kajihara, M. Hirano, “Physical disorder and optical properties in the vacuum ultraviolet region of amorphous SiO2,” Phys. Rev. Lett. 87, 175501 (2001). [ DOI | url ]
K. Kajihara, L. Skuja, M. Hirano, H. Hosono, “Formation and decay of non-bridging oxygen hole centers in SiO2 glasses induced by F2 laser irradiation: In situ observation using a pump and probe technique,” Appl. Phys. Lett. 79, 1757-1759 (2001). [ DOI ]
H. Hosono, T. Kinoshita, Y. Ikuta, K. Kajihara, M. Hirano, “Optical transparency of SiO2 glass in vacuum ultraviolet region and defect formation by F2 laser,” Proc. SPIE 4347, 223-234 (2001). [ DOI ]
K. Kajihara, K. Nakanishi, “Macroporous morphology of titania films prepared by sol-gel dip-coating method from a system containing poly(ethylene glycol) and poly(vinylpyrrolidone),” J. Mater. Res. 16, 58-66 (2001). [ DOI ]
K. Kajihara, T. Yao, “Macroporous morphology of the titania films prepared by a sol-gel dip-coating method from the system containing poly(ethylene glycol). effects of molecular weight and dipping temperature,” J. Sol–Gel Sci. Technol. 19, 219-222 (2000). [ DOI ]
K. Kajihara, T. Yao, “Oxygen detection in sol-gel derived titania thin films doped with tantalum,” Phys. Chem. Chem. Phys. 1, 1979-1983 (1999). [ DOI | url ]
K. Kajihara, T. Yao, “Sol-gel derived macroporous titania films prepared from the system containing poly(ethylene glycol) together with long-chain alcohols,” J. Sol-Gel Sci. Technol. 17, 239-245 (2000). [ DOI ]
K. Kajihara, T. Yao, “Macroporous morphology of the titania films prepared by a sol-gel dip-coating method from the system containing poly(ethylene glycol). IV. general principle of morphology formation and effect of heat treatment,” J. Sol-Gel Sci. Technol. 17, 173-184 (2000). [ DOI ]
K. Kajihara, T. Yao, “Macroporous morphology of the titania films prepared by a sol-gel dip-coating method from the system containing poly(ethylene glycol). III. effect of chemical additives,” J. Sol-Gel Sci. Technol. 16, 257-266 (1999). [ DOI ]
K. Kajihara, T. Yao, “Macroporous morphology of the titania films prepared by a sol-gel dip-coating method from the system containing poly(ethylene glycol). II. effect of solution composition,” J. Sol-Gel Sci. Technol. 12, 193-201 (1998). [ DOI ]
K. Kajihara, T. Yao, “Macroporous morphology of the titania films prepared by a sol-gel dip-coating method from the system containing poly(ethylene glycol). I. effect of humidity,” J. Sol-Gel Sci. Technol. 12, 185-192 (1998). [ DOI ]
K. Kajihara, K. Nakanishi, K. Tanaka, K. Hirao, N. Soga, “Preparation of macroporous titania films by a sol-gel dip-coating method from the system containing poly(ethylene glycol),” J. Am. Ceram. Soc. 81, 2670-2676 (1998). [ DOI | url ]
K. Kajihara, K. Tanaka, K. Hirao, N. Soga, “Photovoltaic effect in titanium dioxide/polythiophene cell,” Jpn. J. Appl. Phys. 36, 5537-5542 (1997). [ DOI | url ]
K. Kajihara, K. Tanaka, K. Hirao, N. Soga, “Photovoltaic effect in titanium dioxide/zinc phthalocyanine cell,” Jpn. J. Appl. Phys. 35, 6110-6116 (1996). [ DOI | url ]
田中勝久, 鹿島謙一, 梶原浩一, 平尾一之, 曽我直弘, 三戸章裕, 那須弘行, “ポーリングしたテルライトガラスの2次非線形光学効果とガラス構造,” 粉体および粉末冶金 42, 55-60 (1995). Open Access [ DOI | pdf ]
K. Tanaka, K. Kashima, K. Kajihara, K. Hirao, N. Soga, A. Mito, H. Nasu, “Second harmonic generation in electrically poled TeO2-based glasses,” Proc. SPIE 2289, 167-176 (1994). [ DOI ]
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