Details of a Researcher - HAYAKAWA Tomokatsu

Papers - HAYAKAWA Tomokatsu

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Photoluminescence Study of Undoped and Eu-Doped Alkali-Niobate Aluminosilicate Glasses and Glass-Ceramics International coauthorship

17 ( 2283 ) 1 - 22 2024.05

Language：English

DOI： https://doi.org/10.3390/ma17102283

Tuning the luminescence color of Eu3+- and alkali-ion-codoped Sr2CaWO6 orange-red phosphors: Eu3+ site distribution and site-selective photoluminescence studies International coauthorship

12 ( 031129 ) 1 - 16 2024.03

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1063/5.0197892

Bandgap and photoluminescence tuanbility of lead-free Cs3Bi2(Br,I)9 solid colution compounds Reviewed International coauthorship

H.Hashimoto, R.Oka, T.Hayakawa*, C.Brabec,

Phys.Status Solidi RRL 2023 2300241 2023.10

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1002/pssr.202300241

Photoluminescence color prediction for Eu3+-doped perovskite red phosphors using machine learning Reviewed

T.Otsuka, R.Oka, M.Karasuyama, T.Hayakawa*

Phys.Status Solidi RRL 2023 2300237 2023.10

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1002/pssr.202300237

Eu3+ Site Distribution and Local Distortion of Photoluminescent Ca3WO6:(Eu3+, K+) Double Perovskites as High-Color-Purity Red Phosphors Reviewed

T.Otsuka, R.Oka, T.Hayakawa*,

Adv.Sci. 2023 2302559 2023.09

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1002/advs.202302559

Other Link： https://doi.org/10.1002/advs.202302559

Alkali-Niobate aluminosilicate glasses: Structure and properties Reviewed International coauthorship

M R. Cicconi, D.K.Dobesh, B.Schroeder, T.Otsuka, T.Hayakawa, D.de Ligny,

Opt.Mater.X 18 100228 2023.09

Authorship：Last author Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1016/j.omx.2023.100228

Atomic structure of ZrO2-doped Li2O–SiO2-based multi-component glasses revealed by molecular dynamics–reverse Monte Carlo modeling Reviewed International coauthorship

R.Toyoda, K.Usui, T.Hirota, K.Kimura, Y.Onodera, M.R.Cicconi, R.Belli, M.Brehl, J.Lubauer, U.Lohbauer, H.Tajiri, K.Ikeda, T.Hayakawa, D.de Ligny, S.Kohara, K.Hayashi

J. Non-Cryst. Solids 616 122472 2023.09

Authorship：Last author Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1016/j.jnoncrysol.2023.122472

X-ray Diffraction, Micro-Raman and X-ray Photoemission Spectroscopic Investigations for Hydrothermally Obtained Hybrid Compounds of Delafossite CuGaO2 and Wurtzite ZnO International coauthorship

Minuk Choi, Christoph Brabec and Tomokatsu Hayakawa*

Ceramics 5 655 - 672 2022.09

Authorship：Corresponding author

DOI： https://doi.org/10.3390/ceramics5040048

Chemical route for synthesis of β-SiAlON:Eu2+ phosphors combining polymer-derived ceramics route with non-hydrolytic sol-gel chemistry Invited Reviewed International coauthorship

Yang Gao, Daiki Hamana, Ryo Iwasaki, Junya Iihama, Sawao Honda, Munni Kumari, Tomokatsu Hayakawa, Samuel Bernard, Philippe Thomas, Yuji Iwamoto

Journal of Sol-Gel Science and Technology 2022 1 - 13 2022.06

DOI： https://doi.org/10.1007/s10971-022-05879-w

High-Temperature Investigation of TeO2–Na2O–ZnO Glasses Invited Reviewed International coauthorship

Jonathan de Clermont-Gallerande,* Daiki Taniguchi, Maggy Colas, Philippe Thomas, and Tomokatsu Hayakawa*

Phys.Status Solidi (b) 2022 2200065-1 - 2200065-7 2022.04

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1002/pssb.202200065

93Nb NMR Study of (K, Na)NbO3-Doped SiO2–Na2O–Al2O3 Glasses Invited Reviewed International coauthorship

Takahito Otsuka,* Maria Rita Cicconi, David Dobesh, Barbara Schroeder, and Tomokatsu Hayakawa*

Phys.Status Solidi (b) 2022 2200016-1 - 2200016-6 2022.04

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1002/pssb.202200016

Introduction of a planar defect into colloidal photonic-crystal films and their optical properties Reviewed

Kenta Komatsu, Tomokatsu Hayakawa, Hiroshi Fudouzi*

Advanced Powder Technology 33 103594-1 - 103594-7 2022.04

Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1016/j.apt.2022.103594

Nucleation mechanisms in a SiO2-Li2O-P2O5-ZrO2 biomedical glass-ceramic: Insights on crystallisation, residual glasses and Zr4+ structural environment International coauthorship

M.R. Cicconi, R. Belli, M. Brehl, J. Lubauer, T. Hayakawa, K. Kimura, T. Hirota, K. Usui, S. Kohara, Y. Onodera, U. Lohbauer, K. Hayashi, D. de Ligny

Journal of the European Ceramic Society 42 1762 - 1775 2022.04

DOI： https://doi.org/10.1016/j.jeurceramsoc.2021.12.009

Novel findings on optical properties of Mn4+-doped (Rb,K)2Ge4O9 phosphors Invited Reviewed International journal

R.Oka*, D.Nishi, T.Hayakawa

Phys.Status Solidi (b) 2022.02

Language：English Publishing type：Research paper (scientific journal)

Simple method to estimate fractional numbers of Eu3+ ions in different phases in highly luminescent ZrO2-SiO2 nanocomposites Invited Reviewed International coauthorship International journal

T.Hayakawa*, R.Ikeshita, J.-R.Duclere, A.Leconte,

Phys.Status Solidi (b) 2022.02

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Polymer-derived β-SiAlON:Eu2+ phosphors Reviewed

Yang Gao, Junya Iihama, Daiki Hamana, Ryo Iwasaki, Sawao Honda, Toru Asaka, Munni Kumari, Tomokatsu Hayakawa, Samuel Bernard, Philippe Thomas, Yuji Iwamoto

Int J Appl Ceram Technol. 2022 1 - 12 2022.09

Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1111/ijac.14228

Green emitting 𝛃-SiAlON:Eu2+ phosphors derived from chemically modified perhydropolysilazanes Reviewed

Yang Gao, Ryo Iwasaki, Daiki Hamana, Junya Iihama, Sawao Honda1, Munni Kumari, Tomokatsu Hayakawa, Samuel Bernard, Philippe Thomas, Yuji Iwamoto

Int J Appl Ceram Technol. 2022 1 - 13 2022.06

Language：English

DOI： https://doi.org/10.1111/ijac.14139

Correlation between mechanical and structural properties as a function of temperature within the TeO2-TiO2-ZnO ternary system Reviewed International coauthorship

J.de Clermont-Gallerande, M.Dutreilh -Colas, R.Célarié, M.Berger, D.deLigny, T.Hayakawa, P.Thomas

J.Non-Cryst.Solids 528 ( 1 ) 119716 2020.01

Language：English Publishing type：Research paper (scientific journal)

Influence of Nd3+ modifying on 80TeO2-xZnO-(20-x)Na2O ternary glass system Reviewed International coauthorship International journal

Jonathan de Clermont-Gallerande, Taniguchi Daiki, Maggy Colas, Philippe Thomas, Tomokatsu Hayakawa

APL Mater. 2021.12

Language：English Publishing type：Research paper (scientific journal)

Thermal evolution to glass-ceramics bearing calcium tungstate crystals in borate glasses doped with photoluminescent Eu3+ ions Reviewed International coauthorship International journal

T.Otsuka, M.Brehl, M.R.Ciconni, D.de Ligny, T.Hayakawa

Materials 14 952 2021.04

Language：English Publishing type：Research paper (scientific journal)

Estimation of delafossite p-type CuGaO2/ZnO hybrids as semiconductor photocatalyst by controlling particle size Reviewed International journal

J.Phys.Chem.Solids In press 109845 2020.11

Language：English Publishing type：Research paper (scientific journal)

New understanding of TeO2-ZnO-Na2O ternary glass system Reviewed International coauthorship

J.de Clermont-Gallerande, S.Saito, M.Colas, P.Thomas, T.Hayakawa

J.Alloys Compds. 854 157072 2020.10

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1016/j.jallcom.2020.157072

Raman Spectroscopic Investigation and Electronic State Calculation for Ca2(Mn,Ti)O4 Black Pigments with High Near-Infrared (NIR) Reflectivity Reviewed

Ryohei Oka* and Tomokatsu Hayakawa

Inorg. Chem. 61 6500 - 6507 2022.04

Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1021/acs.inorgchem.2c00254

Optical properties of Nd3+-doped TeO2-TiO2-ZnO glasses with lower hydroxyl content Invited Reviewed International coauthorship International journal

J.de Clermont-Gallerande, S.Saito, T.Hayakawa, M.Colas, J.-R.Duclère, P.Thomas

J.Non-Cryst.Solids 528 ( 1 ) 119678 2020.01

Language：English Publishing type：Research paper (scientific journal)

Measurement of the third order nonlinear susceptibility ofparatellurite single crystal using multiplex CARS Reviewed International coauthorship International journal

Z. Rajaofara, P. Leproux, E. Capitaine, H. Kano, T. Hayakawa, P. Thomas, J.-R.Duclère, V. Couderc

AIP Advances 9 105301 2019.09

Language：English Publishing type：Research paper (scientific journal)

Hydrothermal synthesis and photocatalytic properties of CuGaO2/ZnO hexagonal platelet hybrids Reviewed International journal

Choi Minuk, Tomokatsu Hayakawa

Materials Research Bulletin 113 84 - 89 2019.05

Language：English Publishing type：Research paper (scientific journal)

Structural investigation of new tellurite glasses belonging to the TeO2-NbO2.5-WO3 system, and a study of their linear and nonlinear optical properties Reviewed International coauthorship International journal

M.R.Zaki, D.Hamani, M.Dutreih-Colas, J.-R.Duclère, J.de Clermont-Gallerande, T.Hayakawa, O.Masson, P.Thomas

J.Non-Cryst.Solids 512 ( 5 ) 161 - 173 2019.05

Language：English Publishing type：Research paper (scientific journal)

Quantum cutting properties of Tb3+/Yb3+ co-doped ZrO2-SiO2 nano-crystalized glasses synthesized via a sol-gel route Reviewed International coauthorship International journal

M.Isogai, T.Hayakawa, J.-R.Duclère, P.Thomas

J. Alloys Compds. 781 ( 4 ) 315 - 320 2019.04

Language：English Publishing type：Research paper (scientific journal)

Devitrification behavior of sol-gel derived ZrO2-SiO2 rare-earth doped glasses: correlation between structural and optical properties Reviewed International coauthorship International journal

M.Isogai, A.Beber, M.R.Cicconi, T.Hayakawa, D.de Ligny,

CeramicsCeramics 1, 274-286 (2018). 1 274 - 286 2018.10

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.3390/ceramics1020022

Novel method to Control Initial Crystallization of Eu3+ Doped ZrO2 Nanophosphors Derived from a Sol-Gel Route Based on HNO3 and their Site-selective Photoluminescence Reviewed International coauthorship International journal

R.Ikeshita, T.Hayakawa*, M.Isogai, Y.Iwamoto, J.-R. Duclére, F.Rémondière, P.Thomas, A.Lecomte

J.Ceram.Soc.Japan 126 ( 7 ) 551 - 556 2018.07

Language：English Publishing type：Research paper (scientific journal)

Laser emission in Nd3+-doped transparent polycrystalline tellurite ceramics International coauthorship

M.Dolhen, M.Tanaka, V.Couderc, S.Chenu, G.Delaizir, T.Hayakawa, J.Cornette, M.Colas, P.Thomas, J.-R.Duclère

Sci.Rep. 8 4640 2018.05

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1038/s41598-018-22922-5

Third order nonlinear optical properties of a paratellurite single crystal Reviewed International coauthorship International journal

J.-R.Duclère, T.Hayakawa, E.M.Roginskii, M.B.Smirnov, A.mirgorodsky, V.Couderc, O.Masson, M.Colas, O.Noguera, V.Rodriguez, P.Thomas

J.Appl.Phys. 123, 183105-1~6 (2018) 123 183105 2018.05

Language：English Publishing type：Research paper (scientific journal)

Accumulation and Interparticle Connections of Triangular Ag-Coated Au Nanoprisms by Oil-coating method for SERS Applications Reviewed

Appl. Surf. Sci. 2018.01

Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier

Temperature dependency of photoluminescence emitted with heat-treatment of nano-boehmite intercalated with monoethanolamine derivatives Reviewed

Y.Ohta, T.Hayakawa, T.Inomata, T.Ozawa, H.Masuda

Chem. Lett. 46 ( 5 ) 722 - 725 2017.05

Language：English Publishing type：Research paper (scientific journal)

Synthesis and glass-structure of transparent zinc–niobate-tellurite glasses with low hydroxyl impurities Reviewed International coauthorship International journal

M. Shimoda, M. Uchida, T. Hayakawa*, P. Thomas

Ceram. Int. 43 ( 3 ) 2962 - 2968 2017.03

Language：English Publishing type：Research paper (scientific journal)

A blue photoluminescent nano boehmite prepared by a solvothermal reaction of aluminum hydroxide gel in monoethanolamine at low temperature synthesis Reviewed

Y.Ohta, T.Hayakawa, T.Inomata, T.Ozawa, H.Masuda

Chem. Lett. 46 ( 1 ) 32 - 34 2017.01

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1246/cl.160819

Other Link： http://www.journal.csj.jp/doi/abs/10.1246/cl.160819

A blue photoluminescent nano boehmite prepared by a solvothermal reaction of aluminum hydroxide gel in monoethanolamine at low temperature synthesis Reviewed

Y.Ohta, T.Hayakawa, T.Inomata, T.Ozawa, H.Masuda

46 ( 1 ) 32 - 34 2017.01

Language：English Publishing type：Research paper (scientific journal)

Systematic Control of Edge-lengths, Tip-Sharpness, Thickness and Localized Surface Plasmon Resonance of Triangular Au Nanoprisms Reviewed

Y.Noda, T.Hayakawa

J.Nanoparticles Res. 18 314-1 - 314-23 2016.11

Language：English Publishing type：Research paper (scientific journal)

Dy3+ ions as optical probes for studying structure of boro-tellurite glasses Reviewed International coauthorship

V.P.Tuyen, B.Sengthong, V.X.Quang, P.V.Doc, H.V.Tuyen, L.X.Hung, N.T.Thanh, M.Nogami, T.Hayakawa, B.T.Huy

Journal of Luminescence 178 27 - 33 2016.10

Language：English Publishing type：Research paper (scientific journal)

Scalable and Formable Tellurite-Based Transparent Ceramics for Near Infrared Applications Reviewed International coauthorship International journal

Anthony Bertrand, Julie Carreaud, Sébastien Chenu, Mathieu Allix, Emmanuel Véron, Jean-René Duclère, Yann Launay, Tomokatsu Hayakawa, Cécile Genevois, François Brisset, Fabrice Célarié, Philippe Thomas and Gaëlle Delaizir

Adv. Opt. Mater. 4 ( 10 ) 1482 - 1486 2016.10

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1002/adom.201600230

Other Link： http://onlinelibrary.wiley.com/doi/10.1002/adom.201600230/full

Synthesis and glass-structure of transparent zinc–niobate-tellurite glasses with low hydroxyl impurities Reviewed International coauthorship

M. Shimoda, M. Uchida, T. Hayakawa, P. Thomas

Ceram. Int. 43 ( 3 ) 2962 - 2968 2016.02

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.sciencedirect.com/science/article/pii/S0272884216320557

Synthesis and glass-structure of transparent zinc–niobate-tellurite glasses with low hydroxyl impurities Reviewed International coauthorship

M. Shimoda, M. Uchida, T. Hayakawa, P. Thomas

Ceram. Int. 43 ( 3 ) 2962 - 2968 2016.02

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.sciencedirect.com/science/article/pii/S0272884216320557

Immobilization of Ag-deposited Au nanoprisms by thiol-coupling and oil-coating methods Reviewed

Y.Noda, T.Hayakawa*

Jpn. J. Appl. Phys 55 01AE11-1 - 01AE11-5 2016.01

Language：English Publishing type：Research paper (scientific journal)

Influence of Al2O3 incorporation on the third-order nonlinear optical properties of Ag2O-TeO2 glasses Reviewed International coauthorship

K.Kato, T.Hayakawa*, Y.Kasuya, P.Thomas

J.Non-Cryst. Solids 431 ( 1 ) 97 - 106 2016.01

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

New transparent glass-ceramics based on the crystallization of “anti-glass" spherulites in the Bi2O3-Nb2O5-TeO2 system Reviewed International coauthorship

A. Bertrand, J. Carreaud, G. Delaizir*, M. Shimoda, J. R. Duclère, M. Colas, M. Belleil, J. Cornette, T. Hayakawa, C. Genevois, E. Veron, M. Allix, F. Brisset, P. Thomas

Cryst. Growth Des. 15 ( 10 ) 5086 - 5096 2015.10

Language：English Publishing type：Research paper (scientific journal)

Relationship between Eu3+ substitution sites and photoluminescence properties of SrIn2O4:Eu3+ spinel phosphors Reviewed

Y. Kang, B. Thuy,Y. Shimokawa, T. Hayakawa, S. Sakaida, L. Miao, S. Tanemura, S. Honda, Y. Iwamoto*

J.Lumin. 169 78 - 85 2015.08

Language：English Publishing type：Research paper (scientific journal)

Lasing effects in new Nd3+-doped TeO2-Nb2O5-WO3 bulk glasses Reviewed International coauthorship

J. Carreaud1, A. Labruyère, H. Dardar, F. Moisy, J.-R. Duclère*, V. Couderc, A. Bertrand1, M. Dutreilh-Colas, G. Delaizir, T. Hayakawa, A. Crunteanu, P. Thomas

Opt.Mater. 47 99 - 107 2015.08

Language：English Publishing type：Research paper (scientific journal)

Structural investigation and Eu3+ Luminescence Properties of LaF3:Eu3+ Nanophosphors Reviewed International coauthorship

X.T.Zhang*, T.Hayakawa, Y.Ishikawa, N.Jishou, M.Nogami,

J. Alloys Compds. 664 77 - 81 2015.05

Language：English Publishing type：Research paper (scientific journal)

Thermal, optical and structural properties of glasses within the TeO2-TiO2-ZnO system Reviewed International coauthorship

N. Ghribi, M.Colas*, J.-R.Duclère, T.Hayakawa, J.Carreaud, R.Karray, A.Kabadou, P.Thomas,

J. Alloys Compd. 622 333 - 340 2015.05

Language：English Publishing type：Research paper (scientific journal)

Tm3+ concentration dependence on blue up-conversion photoluminescence for Tm3+/Yb3+ co-doped TeO2-TlO0.5-ZnO glasses Reviewed

M.Uchida, T.Hayakawa*, T.Suhara, J.R.Duclère, P.Thomas,

Int. J. Appl. Glass Sci. 6 ( 1 ) 83 - 93 2015.01

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)2041-1294

Thermal, optical and structural properties of glasses within the TeO2-TiO2-ZnO system Reviewed

N. Ghribi, M.Colas, J.-R.Duclere, T.Hayakawa, J.Carreaud, R.Karray, A.Kabadou, P.Thomas

J. Alloys Compd. 622 333 - 340 2014.11

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.sciencedirect.com/science/journal/09258388/

aman investigation and glass-compositional dependence on blue up-conversion photoluminescence for Tm3+/Yb3+ co-doped TeO2-TlO0.5-ZnO glasses Reviewed

M.Uchida, T.Hayakawa*, T.Suhara, J.R.Duclère, P.Thomas,

Opt.Mater.Express 4 ( 4 ) 823 - 835 2014.03

Language：English Publishing type：Research paper (scientific journal)

Glass structure and linear/nonlinear optical properties of Ag2O-doped TeO2 glasses Reviewed

Y.Kasuya, T.Suhara, T.Hayakawa*, P.Thomas, M.Nogami

Key Engin. Mater. 617 141 - 144 2014.02

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Cathodoluminescence properties of Pr3+-doped perovskite type transparent red luminescent thin films processed by a sol-gel method Reviewed

Y.Ishikawa, T.Hayakawa*, K.Inoue, M.Nogami

J.Sol.Gel.Sci.Technol. 65 324 - 328 2013.02

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1007/s10971-012-2939-8

A unique approach to characterization of sol-gel-derived rare-earth-doped oxyfluoride glass-ceramics Reviewed

G. Kawamura, R. Yoshimura, K. Ota, S.-Y. Oh, N.Hakiri, H.Muto, T.Hayakawa, A. Matsuda

J. Amer. Ceram. Soc. 96 ( 2 ) 476 - 480 2013.02

Language：English Publishing type：Research paper (scientific journal)

Optical properties of tellurite glasses elaborate within the TeO2-Tl2O-Ag2O and TeO2-ZnO-Ag2O ternary system Reviewed

D.Linda, J.-R.Duclere, T.Hayakawa, M.Dutreilh-Colas, T.Cardinal, A.Mirgorodsky, A.Kabadou, P.Thomas

J. Alloys Compds 561 151 - 160 2013.02

Language：English Publishing type：Research paper (scientific journal)

Development of zeolite-derived novel aluminosilicate phosphors Reviewed

M.Aoyama, T.Hayakawa, S.Honda, Y.Iwamoto

J.Lumin 132 2603 - 2607 2012.10

Language：English Publishing type：Research paper (scientific journal)

Role of charge transfer state and host matrix in Eu3+-doped alkali-earth alkali fluoro-aluminoborate glasses Reviewed

N.T.Thanh, V.X.Quang, V.P.Tuyen, N.V..Tam, T.Hayakawa, B.T.Huy

Opt.Mater. 34 1477 - 1481 2012.10

Language：English Publishing type：Research paper (scientific journal)

Polarized Raman mapping method for estimation of refractive index differences on grain-boundaries and in-line transmission properties of polycrystalline alumina Reviewed

T.Hayakawa, S. Hayashi, .S. Miyazawa, T. Ohashi, K. Watanabe

Opt. Mater. Exp. 2 ( 7 ) 914 - 919 2012.07

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Third-order nonlinear optical properties and low-frequency Raman scattering of MO-Nb2O5-TeO2 glasses Reviewed

T.Suhara, T.Hayakawa, M.Nogami, P.Thomas

J.Univ.Chem.Tech.Met 47 ( 4 ) 369 - 373 2012.04

Language：English Publishing type：Research paper (scientific journal)

Optical properties of TeO2-TiO2 thin films doped with Eu3+ ions fabricated by sol-gel processing Reviewed

T.Hayakawa, H.Koyama, M.Nogami, P.Thomas

J.Univ.Chem.Tech.Met 47 ( 4 ) 381 - 386 2012.04

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Reversible control in surface plasmon resonance wavelength of gold nanoparticles by using Polydimethylsiloxane(PDMS) Reviewed

Y.Tsutsui, H.Fudouzi, T.Hayakawa*, M.Nogami

Mater. Sci. Engin. 18 082008-1 - 082008-7 2011.05

Language：English Publishing type：Research paper (scientific journal)

A novel proton conductor of imidazole-aluminum phosphoate hybrids in the solid state Reviewed

M.Nakayama*, Y.Sugiura, T.Hayakawa, M.Nogami,

Phys.Chem.Chem.Phys. 2011.05

Language：English Publishing type：Research paper (scientific journal)

Copper reduction and hydroxyl formation by hydrogen process in alumino-silicate glasses Reviewed

K.Guilherme, T.Hayakawa*, M.Nogami,

J. Phys. Chem. Solids 72 151 - 157 2011.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.journals.elsevier.com/journal-of-physics-and-chemistry-of-solids/

Structures and third-order optical nonlinearities of BiO1.5-WO3-TeO2 glasses Reviewed

T.Fujiwara, T.Hayakawa*, M.Nogami, J.R.Duclère, P.Thomas,

J. Am. Ceram. Soc. 95 1434 - 1439 2011.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1551-2916

Synthesis and luminescence properties of well-dispersed LaF3:Eu3+ nanocrystals Reviewed

X.T.Zhang, T.Hayakawa*, M.Nogami, Y.Ishikawa,

J. Ceram. Proc. Res. 12 s39 - s43 2011.05

Language：English Publishing type：Research paper (scientific journal)

White light emission of organo-modified Al2O3-SiO2 sol-gel glasses Reviewed

T.Hayakawa*, A.Sawa, M.Nogami, S.Niiyama, S.Tanaka

J. Ceram. Proc. Res. 12 s44 - s46 2011.05

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Structural and luminescence properties of polytype GdF3:Eu3+ nanophosphors Reviewed

X.T.Zhang*, T.Hayakawa, M.Nogami, Y.Ishikawa,

J. Alloys Compds. 509 2076 - 2080 2011.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.journals.elsevier.com/journal-of-alloys-and-compounds/

Optical properties and Judd-Ofelt parameters of Sm3+ doped BiO1.5-WO3-TeO2 glasses Reviewed

T.Fujiwara, T.Hayakawa*, M.Nogami, J.R.Duclère, P.Thomas,

Phys.Status Solidi C 8 ( 9 ) 2597 - 2600 2011.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1610-1642a

Raman spectra and third-order nonlinear optical Z-scan properties of MO-Nb2O5-TeO2 (M=Zn, Mg, Ca, Sr, Ba) glasses Reviewed

T.Hayakawa*, T.Suhara, T.Fujiwara, M.Nogami, P.Thomas,

Phys.Status Solidi C 8 ( 9 ) 2633 - 2636 2011.05

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Other Link： http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1610-1642a

Optical detection of near infrared femtosecond laser-heating of Er3+-doped ZnO-Nb2O5-TeO2 glass by green up-conversion fluorescence of Er3+ ions Reviewed

M.Hayakawa, T.Hayakawa*, X.T.Zhang, M.Nogami,

Journal of Luminescence 131 843 - 849 2011.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.journals.elsevier.com/journal-of-luminescence/

Tuned longitudinal surface plasmon resonance and third-order nonlinear optical properties of gold nanorods Reviewed

Y.Tsutsui, T.Hayakawa*, G.Kawamura, M.Nogami,

Nanotechnology 22 275302-1 - 275302-7 2011.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://iopscience.iop.org/0957-4484/

Photoluminescence properties of LaF3:Eu3+ nanocrystals prepared by using surfactant assist Reviewed

X.T.Zhang, T.Hayakawa*, M.Nogami,

Int. J.Appl.Ceram.Technol. 8 ( 4 ) 741 - 745 2011.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1744-7402

Doping effects of transition metal Ions on magnetic and optical properties of EuO-Al2O3-SiO2 glasses Reviewed

Y.Yasuoka, T. Hayakawa*, M.Nogami,

Mater. Sci. Engin. 18 112013-1 - 112013-4 2011.05

Language：English Publishing type：Research paper (scientific journal)

The synthesis and characterization of platinum nanoparticles: a method of controlling the size and morphology Reviewed

N.V.Long, N.D.Chien, T.Hayakawa, H.Hirata, G.Lakshminarayana, M.Nogami*

Nanotechnology 21 035605 2010.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://iopscience.iop.org/0957-4484/

Nonlinear optical properties and glass structure for MO-Nb2O5-TeO2 (M = Zn, Mg, Ca, Sr, Ba) glasses Reviewed

T.Hayakawa*, M.Hayakawa, M.Nogami, P.Thomas,

Opt. Mater. 32 448 - 455 2010.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.journals.elsevier.com/optical-materials/

Second harmonic generation induced by optical poling in new TeO2-Tl2O-ZnO glasses Reviewed

M.Soulis, J.-R.Duclère, T.Hayakawa, V.Couderc, M.Dutreilh-Colas, P.Thomas*,

Mater. Res. Bull. 45 551 - 557 2010.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.journals.elsevier.com/materials-research-bulletin/

Metal oxide doping effects on Raman spectra and third-order nonlinear susceptibilities of thallium-tellurite glasses Reviewed

T.Hayakawa*, M.Koduka, M.Nogami, J.R.Duclère, A.P.Mirgorodsky, P.Thomas,

Scr. Mater. 62 806 - 809 2010.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.journals.elsevier.com/scripta-materialia/

Fluorescence line narrowing spectroscopy of Eu3+ in zinc-thallium-tellurite glass Reviewed

V.P.Tuyen, T.Hayakawa*, M.Nogami, J.R.Duclére, P.Thomas,

J. Solid State Chem. 183 2714 - 2719 2010.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.journals.elsevier.com/journal-of-solid-state-chemistry/

Hydrogen gas permeation through Al2O3-SiO2 glasses containing metal ions Reviewed

M.Nogami*, H.Shiiba, G.A. Kleine, M.Nakayama, T.Hayakawa,

J. Am. Ceram. Soc. 93 3752 - 3756 2010.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1551-2916

Selective synthesis and luminescence properties of nanocrystalline GdF3:Eu3+ with hexagonal and orthorhombic structures Reviewed

X.T.Zhang, T.Hayakawa*, M.Nogami, Y.Ishikawa,

J. Nanomaterials 2010 651326 2010.05

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.hindawi.com/journals/jnm/

Enhanced fluorescence from Eu³⁺-doped silica gels by adsorbed CdS nanoparticles Reviewed

T. Hayakawa et al.

J. Non-Crystalline Solids 291 ( 1 ) 137 - 141 2001.04

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.journals.elsevier.com/journal-of-non-crystalline-solids/

Optical bistablility of stimulated emission lines in Sm3+-doped glass microsphere Reviewed

Optics Letters 26 ( 2 ) 84 - 86 2001.04

Language：English Publishing type：Research paper (scientific journal)

Other Link： http://www.opticsinfobase.org/ol/home.cfm

Energy migration of the local excitation at the Eu³⁺ site in a Eu-O chemical clustering in sol-gel derived SiO₂:Eu³⁺ glass Reviewed

T. Hayakawa, M. Nogami

Journal of Applied Physics 90 ( 5 ) 2200 - 2205 2001.04

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

<HAYAKAWA Tomokatsu>

Papers - HAYAKAWA Tomokatsu