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Publications

2021

  • Takuya Tsujimura and Takashi Uchino
    Oriented Crystallization of Ammonium Sulfate from Hexagonal Boron Nitride/Sulfuric Acid Intercalation Compounds
    ACS Omega 6(9) 6482-6487 (2021).

2020

  • Shusuke Fujii, Yutaka Adachi, and Takashi Uchino
    Excitonic stimulated emission from MgxZn1−xO films due to enhanced exciton binding energy
    Phys. Rev. B 102 075204(2020).
  • Takashi Uchino, Nanami Teramachi, Ryosuke Matsuzaki, Emi Tsushima, Shusuke Fujii, Yusuke Seto, Kazuyuki Takahashi, Takao Mori, Yutaka Adachi, Yukihito Nagashima, Yoshifumi Sakaguchi, Kazuki Ohishi, Akihiro Koda, Takahiro Sakurai, and Hitoshi Ohta
    Proximity coupling of superconducting nanograins with fractal distributions
    Phys. Rev. B 101 035146 (2020).
  • Osamu Wada, Doddoji Ramachari, Chan-Shan Yang, Takashi Uchino, and Ci-Ling Pan
    High refractive index properties of oxyfluorosilicate glasses and a unified dielectric model of silicate oxide glasses in the sub-terahertz frequency region
    Optical Materials Express 10(2) 607-621 (2020).

2019

  • Toshiyuki Kaizu, Yousuke Kawajiri, Masahito Enomoto, Takashi Uchino, Minoru Mizuhata, Yuichi Ichihashi, Keita Taniya, Satoru Nishiyama, Masakazu Sugiyama, Masami Ueno, Takashi Kita
    Photoelectrochemical Reaction in an Electric Cell with a Porous Carbon Anode
    J. Phys. Chem. C 123 19447-19452 (2019).
  • Ryosuke Matsubara, Tomoaki Kaiba, Akito Nakata, Tatsushi Yabuta, Masahiko Hayashi, Motonari Tsubaki, Takashi Uchino, Eri Chatani
    9-Aryl-3-aminocarbazole as an Environment- and Stimuli-Sensitive Fluorogen and Applications in Lipid Droplet Imaging
    J. Org. Chem. 84 5535-5547 (2019).
  • Doddoji Ramachari, Chan-Shan Yang, Osamu Wada, Takashi Uchino, and Ci-Ling Pani
    High-refractive index, low-loss oxyfluorosilicate glasses for sub-THz and millimeter wave applications
    J. Appl. Phys. 125 151609 (2019).

2018

  • Yu Nagayoshi, Ryosuke Matsuzaki and Takashi Uchino
    Multiple Intersystem Crossing Processes in Ge-Doped Silica Glass: Emission Mechanism of 2-Fold Coordinated Ge atoms
    J. Phys. Chem. C 122 23712-23719 (2018).
  • Ryosuke Matsuzaki and Takashi Uchino
    Effect of size and shape on the excitonic stimulated emission process in ZnO microstructures
    J. Appl. Phys.124 063103 (2018).

2017

  • R. Matsuzaki, H. Soma, K. Fukuoka, K. Kodama, A. Asahara, T. Suemoto, Y. Adachi, and T. Uchino
    Purely excitonic lasing in ZnO microcrystals: Temperature-induced transition between exciton-exciton and exciton-electron scattering
    Phys. Rev. B 96 125306 (2017).

2016

  • Y. Nagayoshi and T. Uchino
    Enhanced ultraviolet emission and its irreversible temperature antiquenching behavior of twofold coordinated silicon centers in silica glass
    Appl. Phys. Lett. 109 181103 (2016).
  • K. Ueno, Y. Nagashima, Y. Seto, M. Matsumoto, T. Sakurai, H. Ohta, K. Takahashi and T. Uchino
    Coherent interface structures and intergrain Josephson coupling in dense MgO/Mg2Si/MgB2 nanocomposites
    J. Appl. Phys. 120 015102 (2016).

2015

  • H. Soma, Y. Uenaka, A. Asahara, T. Suemoto and T. Uchino
    Ultraviolet Stimulated Emission from High-Temperature-Annealed MgO Microcrystals at Room Temperature
    Appl. Phys. Lett. 106 041116 (2015).

2014

  • T. Uchino, Y. Uenaka, H. Soma, T. Sakurai, and H. Ohta
    Magnetic hysteresis behavior and magnetic pinning in a d0 ferromagnet/superconductor nanostructure
    J. Appl. Phys. 115 063910 (2014).

2013

  • T. Uchino and T. Yoko
    Spin-polarized ground states and ferromagnetic order induced by low-coordinated surface atoms and defects in nanoscale magnesium oxide
    Phys. Rev. B 87 144414 (2013).

2012

2011

2010

  • K. Matsumoto, Y. Uenaka, Y. Seto, H. Yashiro, H. Nakamura, T. Kimura, and T. Uchino
    Synthetic Condition to Generate Magnesium-Related Acceptor Levels in Silicon
    J. Appl. Phys. 108, 113706 (2010)
  • T. Uchino
    Oxides of Third Period Elements Revisited: Synthesis, Structure and Photoluminescence Properties of Silica, Magnesia, and Alumina (review)
    J. Ceram. Soc. Jpn. 118(12), 1115-1123 (2010)
  • Y. Iwasaki, Y. Shibata, A. Watanabe, M. Inada, H. Kawasaki and T. Uchino
    One-pot Preparation of Water-soluble Blue Luminescent Silica Flakes via Microwave Heating
    Chem. Lett. 39(4) 370-371 (2010)
  • A. Nishimura, S. Harada, and T. Uchino
    Effect of Cross-Linking and Organic Groups on the Visible Photoluminescence Characteristics of n-Octadecylsiloxanes
    J. Phys. Chem. C, 114 8568 (2010)
  • 内野隆司
    LED照明の効率化プロセス・材料技術と応用展開(分担執筆)
    「シリカ関連材料の発光現象と白色LED用蛍光体への応用」(サイエンス&テクノロジー株式会社,2010年)
  • 内野隆司
    「シリカベース有機−無機複合体の発光現象」 New Glass 25(1), 27-30 (2010).

2009

  • M. Itou, A. Fujiwara, and T. Uchino
    Reversible Photoinduced Interconversion of Color Centers in α-Al2O3 Prepared Under Vacuum
    J. Phys. Chem. C, 113 20949 (2009)
  • T. Uchino, D. Okutsu, R. Katayama, and S. Sawai
    Mechanism of Stimulated Optical Emission from MgO Microcrystals with Color Centers
    Phys. Rev. B 79(16), 165107 (2009) (8 pages) .
  • D. Gautam, E. Koyanagi, and T. Uchino
    Photoluminescence Properties of SiOx Thin Films Prepared by Reactive Electron Beam Evaporation from SiO and Silica Nanoparticles
    J. Appl. Phys. 105 073517 (2009) (8 pages).
  • A. Nishimura, N. Sagawa, and T. Uchino
    Structural Origin of Visible Luminescence from Silica Based Organic-Inorganic Hybrid Materials
    J. Phys. Chem. C, 113(11) 4260-4262 (2009).
  • T. Uchino
    Synthesis, Structure and Properties of Nanometer-Sized Silica Particles
    in Handbook of Nanoceramics and Their Based Nanodevices, Vol. 1, edited by T. Y. Tseng and H. S. Nalwa
    (American Scientific Publishers, California, 2009) Chapter 9, pp 245-266.

2008

2007

  • A. Mukai, S. Kohara, and T. Uchino
    Modification of Medium-Range Order in Silica Glass by Ball Milling: Real- and Reciprocal-Space Structural Correlations for the First Sharp Diffraction Peak
    J. Phys.: Condens. Matter 19, 455214 (2007) (7 pages).
  • T. Yamada, M. Nakajima, T. Suemoto, T. Uchino
    Formation and Photoluminescence Characterization of Transparent Silica Glass Prepared by Solid Phase Reaction of Nanometer-Sized Silica Particles
    J. Phys. Chem. C 111, 12973-12979 (2007).
  • E. Koyanagi and T. Uchino
    Evolution Process of Luminescent Si Nanostructures in Annealed SiOx Thin Films Probed by Photoconductivity Measurements
    Appl. Phys. Lett. 91, 041910 (2007) (3 pages).
  • A. Aboshi, N. Kurumoto, T. Yamada, and T. Uchino
    Influence of Thermal Treatments on the Photoluminescence Characteristics of Nanometer-Sized Amorphous Silica Particles
    J. Phys. Chem. C 111 8483-8488 (2007).
  • N. Kurumoto, T. Yamada, and T. Uchino
    Enhanced Blue Photoluminescence from SiCl4-Treated Nanometer-Sized Silica Particles
    J. Non-Cryst. Solids 353, 684-686 (2007).
  • 内野隆司 
    ガラスの百科事典(分担執筆)「19.9 量子化学計算」(朝倉書店,2007年)
  • 内野隆司
    「アモルファスシリカ微粒子の構造と発光特性」応用物理 76(7), 785-789 (2007).
  • 内野隆司
    「量子化学計算によるガラスの構造と物性の研究」New Glass 22(1), 20-27 (2007).

2006

  • T. Uchino and T. Yoko
    Density Functional Theory of Structural Transformations of Oxygen-Deficient Centers in Amorphous Silica During Hole Trapping: Structure and Formation Mechanism of the E'(gamma) Center
    Phys. Rev. B 74, 125203 (2006) (11 pages)
  • T. Uchino, N. Kurumoto, and N. Sagawa
    Structure and Formation Mechanism of Blue-Light-Emitting Centers in Silicon and Silica-Based Nanostructured Materials
    Phys. Rev. B 73, 233203 (2006) (4 pages)

2005

  • N. Sagawa and T. Uchino
    Visible Luminescence from Octadecylsilane Monolayers on Silica Surfaces: Time-Resolved Photoluminescence Characterization
    Appl. Phys. Lett. 87 251923 (2005)
  • T. Yamada and T. Uchino
    Photoluminescence Decay Dynamics of Transparent Silica Glass Prepared from Nanometer-Sized Silica Particles
    Appl. Phys. Lett. 87 081904 (2005)
  • D. Miyabe, M. Takahashi, Y. Tokuda, T. Yoko, and T. Uchino
    Structure and Formation Mechanism of Six-Fold Coordinated Silicon in Phosphosilicate Glasses
    Phys. Rev. B 71 172202 (2005)
  • T. Uchino, J. D. Harrop, S. N. Taraskin, and S. R. Elliott
    Real and Reciprocal Space Structural Correlations Contributing to the First Sharp Diffraction Peak in Silica glass
    Phys. Rev. B 71 014202 (2005)
  • T. Uchino
    Structure and Properties of Amorphous Silica and Its Related Materials: Recent Developments and Future Directions (Review)
    J. Ceram. Soc. Jpn. 113 17-25 (2005)

2004

  • T. Uchino and T. Yamada
    White Light Emission from Transparent SiO2 Glass Prepared from Nanometer-Sized Silica Particles
    Appl. Phys. Lett. 85 1164-1166 (2004)
  • T. Uchino, A. Aboshi, S. Kohara, Y. Ohishi, M. Sakashita, and K. Aoki
    Microscipic Structure of Nanometer-Sized Silica Particles
    Phys. Rev. B 69 155409 (2004)

2003

  • T. Uchino and T. Yoko
    Mechanism of Electron Localization at Edge-Sharing Units in Amorphous SiO2
    Phys. Rev. B 68 041201(R) (2003)
  • T. Uchino and S. R. Elliott
    Electronic Excitation and Transient Defects in As2S3 Glass
    Phys. Rev. B 67 174201 (2003)
  • T. Uchino, A. Sakoh, M. Azuma, S. Kohara, M. Takahashi, M. Takano, and T. Yoko
    Anelastic Compression of Nanometer-Sized Silica Particles under High Pressure: A High Energy X-ray Diffraction Measurement
    Phys. Rev. B 67 092202 (2003)
  • Y. Tokuda, T. Uchino, and T. Yoko
    Ab Initio Study of NMR Spectra of Li2S-SiO2 Glass System
    J. Non-Cryst. Solids 33061-65 (2003)

2002

  • T. Uchino, M. Takahashi, and T. Yoko
    Microscopic Mechanism of Radiation Induced Structural Changes in Pure and Doped SiO2 Glass
    Phys. Chem. Glasses 43C 149-154 (2002)
  • T. Uchino, A. Sakoh, M. Azuma, M. Takano, M. Takahashi, and T. Yoko,
    A Novel Pressure-Induced Polymorphic Transition from Fumed Silica to Transparent Amorphous SiO2 at Room Temperature
    J. Phys.: Condens. Matter 14 11111-11114 (2002)
  • T. Uchino
    Structure of As2S3 Glass in Electronically Excited States
    J. Optelectron. Adv. Mat. 4 605-609 (2002)
  • T. Uchino, D. C. Clary, and S. R. Elliott
    Microscopic Mechanisms for Photoinduced Metastability in Amorphous As2S3
    Phys. Rev. B 65 174204 (2002)
  • T. Uchino, M. Takahashi, K. Ichii and T. Yoko
    Microscopic Model of Photoinduced and Pressure-Induced UV Spectral Changes in Germanosilicate Glass
    Phys. Rev. B 65,172202 (2002)
  • T. Uchino, M. Takahashi and T. Yoko
    Formation and decay mechanisms of electron-hole pairs in amorphous SiO2
    Appl. Phys. Lett. 80 1147-1149 (2002)

2001

  • T. Uchino
    Ab Initio Cluster Calculations on Point Defects in Amorphous SiO2
    Current Opinion in Solid State & Materials Science 5 517-523 (2001)
  • T. Uchino, M. Takahashi and T. Yoko
    Model of a Switching Oxide Trap in Amorphous Silicon Dioxide
    Phys. Rev. B 64 081310(R) (2001)
  • T. Uchino, M. Takahashi and T. Yoko
    E' Centers in Amorphous SiO2 Revisited: A New Look at an Old Problem
    Phys. Rev. Lett. 86 5522-5525 (2001)
  • T. Uchino, M. Takahashi and T. Yoko
    Mechanism of Electron Trapping in Ge-Doped SiO2 Glass
    Appl. Phys. Lett. 79 359-361 (2001).
  • T. Uchino, M. Takahashi and T. Yoko
    Structure and Formation Mechanism of the E'-alpha Center in Amorphous SiO2
    Appl. Phys. Lett. 78 2730-2732 (2001).
  • T. Uchino, M. Takahashi and T. Yoko
    Structure and Generation Mechanism of the Peroxy-Radical Defect in Amorphous Silica
    Phys. Rev. Lett. 86 4560-4563 (2001).
  • T. Uchino, M. Takahashi and T. Yoko
    Mechanism of Interconversion among Radiation-Induced Defects in Amorphous Silicon Dioxide
    Phys. Rev. Lett. 86 1777-1780 (2001).
  • M. Takahashi, K. Tsukigi, T. Uchino and T. Yoko
    Enhanced Photocurrent in Thin Film TiO2 Electrodes Prepared by Sol-Gel Method
    Thin Solid Films 388 231-236 (2001).
  • Y. Tokuda, T. Uchino and T. Yoko
    Vibrational Dynamics of Glassy SiS2 on the Basis of Molecular Orbital Calculations
    J. Non-Cryst. Solids. 282 256-264 (2001).
  • H. Niida, T. Uchino, J. Jin, S. H. Kim, T. Fukunaga, and T. Yoko
    Structure of Alkali Tellurite Glasses from Neutron Diffraction and Molecular Orbital Calculations
    J. Chem. Phys. 114 459-467 (2001).

2000

  • T. Uchino, M. Takahashi and T. Yoko
    Structure and Paramagnetic Properties of Defect Centers in Ge-Doped SiO2 glass: Localized and Delocalized Ge E' Centers
    Phys. Rev. B 62 15303-15306 (2000).
  • T. Uchino, D. C. Clary, and S. R. Elliott
    Mechanism of Photoinduced Changes in the Structure and Optical Properties of Amorphous As2S3
    Phys. Rev. Lett. 85 3305-3308 (2000).
  • T. Takaishi, J. Jin, T. Uchino, and T. Yoko
    Structural Study of PbO-B2O3 Glasses by X-ray Diffraction and 11B MAS NMR Techniques
    J. Am. Ceram. Soc. 83 2543-2548 (2000).
  • T. Uchino, M. Takahashi and T. Yoko
    Model of Oxygen-Deficiency-Related Defects in SiO2 Glass
    Phys. Rev. B 62 2983-2986 (2000).
  • T. Uchino, M. Takahashi and T. Yoko
    Structure and Formation Mechanism of Ge E' Center from Divalent Defects in Ge-doped SiO2 Glass
    Phys. Rev. Lett. 84 1475-1478 (2000).
  • T. Uchino, Y. Kitagawa and T. Yoko
    Structre, Energies and Vibrational Properties of Silica Rings in SiO2 Glass
    Phys. Rev. B 61 234-240 (2000).
  • T. Uchino and T. Yoko
    Structure and Vibrational Properties of Alkali Phosphate Glasses from ab Initio Molecular Orbital Calculations
    J. Non-Cryst. Solids 263&264 180-188 (2000).
  • T. Uchino, K. Nakaguchi, Y. Nagashima and T. Kondo
    Prediction of Optical Properties of Commercial Soda-Lime-Silicate Glasses Containing Iron
    J. Non-Cryst. Solids 261 72-78 (2000).

1999

  • T. Uchino and T. Yoko
    Sodium and Lithium Environments in Single- and Mixed-Alkali Silicate Glasses. An ab Initio Molecular Orbital Study
    J. Phys. Chem. B 103 1854-1858 (1999).
  • T. Uchino and T. Yoko
    Structure and Low-frequency vibrational properties of (H2O)10 composed of a ring form of (H2O)4 and a cage form of (H2O)6
    Phys. Chem. Chem. Phys. 1 3473-3479 (1999).
  • T. Uchino
    Effect of Order on the Structure and Vibrational Properties of Glasses
    Chemistry and Chemical Industry 2 128-132 (1999). (in Japanese)

1998

  • T. Uchino and T. Yoko
    Structure and Vibrational Properties of Sodium Disilicate Glass from ab Initio Molecular Orbital Calculations
    J. Phys. Chem. B 102 8372-8378 (1998).
  • T. Uchino and T. Yoko
    Localized Low-Frequency Dynamics in SiO2 Glass
    J. Chem. Phys. 108 8130-8138 (1998).
  • T. Uchino, Y. Tokuda and T. Yoko
    Vibrational Dynamics of Defect Modes in Vitreous Silica
    Phys. Rev. B 58 5322-5328 (1998).
  • T. Uchino and T. Yoko
    Vibrations of Alkali Cations in Borate Glasses from Molecular Orbital Calculations
    Solid State Ionics 105 91-96 (1998).

1997

  • T. Uchino and T. Yoko
    Ab Initio Molecular Orbital Calculations on the Structure and the Low-Frequency Vibrational Modes in B2O3 and Alkali Borate Glasses
    in Borate Glasses, Crystals & Melts, edited by A.C. Wright, S.A. Feller and AC Hannon (The Society of Glass Technology, Sheffield) 417-424 (1997).
  • T. Uchino and T. Yoko
    Ab Initio Molecular Orbital Calculations on the Boson Peak Frequencies of Molecular Glasses
    Prog. Theor. Phys. Suppl. 126 147-150 (1997).
  • T. Uchino, S. Kim, T. Yoko and T. Fukunaga
    Medium-Range Structure of TeO2 Glass from Molecular Orbital Calculations
    J. Ceram. Soc. Japan 105, 201-205 (1997).
  • K. Terashima, T. Uchino, T. Hashimoto and T. Yoko
    Structure and Nonlinear Optical Properties of BaO-TiO2-B2O3 Glasses
    J. Ceram. Soc. Japan 105 288-293 (1997).

1996

  • T. Uchino and T. Yoko
    Low-Frequency Raman Scattering and the Fast Relaxation Process in Glycerol
    Science 273 480-483 (1996).
  • T. Uchino and T. Yoko
    Ab Initio Cluster Model Calculations on the Boson Peak Frequencies of B2O3 Glass
    J. Chem. Phys. 105 4140-4150 (1996).
  • T. Uchino and T. Yoko
    Ab Initio Cluster Model Calculations on the Vibrational Frequencies of TeO2 Glass
    J. Non-Cryst. Solids. 204 243-252 (1996).
  • K. Terashima, T. Hashimoto, T. Uchino, S. Kim and T. Yoko
    Structure and Nonlinear Optical Properties of Sb2O3-B2O3 Binary Glasses
    J. Ceram. Soc. Japan 104 1008-1014 (1996).

1995

  • T. Uchino
    Models for Ionic Transport in Oxide Glasses
    Def. Diff. Forum 117-118 111-28 (1995).
  • T. Uchino and Y. Ogata
    Ab Initio Molecular Orbital Calculations on the Electronic Structure of Phosphate Glasses. Binary Alkali Phosphate Glasses
    J. Non-Cryst. Solids 191 56-70 (1995).
  • T. Uchino and Y. Ogata
    Ab Initio Molecular Orbital Calculations on the Electronic Structure of Phosphate Glasses. Sodium Phosphate Glasses
    J. Non-Cryst. Solids 181 175-188 (1995).
  • T. Uchino and Y. Ogata
    Ab Initio Normal-Mode Analysis of Low Frequency Raman Scattering in B2O3 Glass
    Proceedings of XVII International Congress on Glass, Vol.2 (Chinese Ceramic Society, Beijing) pp. 15-20 (1995).
  • T. Uchino and T. Yoko
    Ab Initio Molecular Orbital Calculations on the Structure and Properties of Heavy-Metal Oxide Glasses
    New. Glass 10 41-44 (1995). (in Japanese)

1994

    Coffee Break


     

1993

  • T. Uchino, T. Sakka, Y. Ogata, and M. Iwasaki
    Local Structure of Sodium Aluminosilicate Glasses: An ab Initio Molecular Orbital Study
    J. Phys. Chem. 97 9642-49 (1993).

1992

  • T. Uchino, T. Sakka, Y. Ogata and M. Iwasaki
    Mechanism of Hydration of Sodium Silicate Glass in a Steam Environment: 29Si NMR and ab Initio Molecular Orbital Studies
    J. Phys. Chem. 96 7308-7315 (1992).
  • T. Uchino, T. Sakka, Y. Ogata and M. Iwasaki
    A New Model of Ionic Transport for Single and Mixed Alkali Oxide Glasses Based on ab Initio Molecular Orbital Calculations
    J. Non-Cryst. Solids 146 26-42 (1992).
  • T. Uchino. T. Sakka, Y. Ogata and M. Iwasaki
    Changes in the Structure of Alkali-Metal Silicate Glasses with the Type of Network Modifier Cation: An ab Initio Molecular Orbital Study
    J. Phys. Chem. 96 2455-63 (1992).

1991

  • T. Uchino, T. Sakka, M. Iwasaki and Y. Ogata
    Ab Initio Molecular Orbital Calculations on the Electronic Structure of Sodium Silicate Glasses
    J. Phys. Chem. 95 5455-62 (1991).
  • T. Uchino, T. Sakka and M. Iwasaki
    Interpretation of Hydrated States of Sodium Silicate Glasses by Infrared and Raman Analysis
    J. Am. Ceram. Soc. 74 306-13 (1991).

1988-1890

  • T. Uchino, T. Sakka, K. Hotta and M. Iwasaki
    Attenuated Total Reflectance Fourier-Transform Infrared Spectra of a Hydrated Sodium Silicate Glass
    J. Am. Ceram. Soc. 72 2173-75 (1989).
  • Y. Takeuchi, N. Imanishi, K. Toyoda, T. Uchino and M. Iwasaki
    Trapping of Hydrogen Implanted into Titanium
    J. Appl. Phys. 64 2959-2963 (1988).