• 3874 Citations
  • 33 h-Index
1988 …2020

Research output per year

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Research Output

2011

Factors for determining photoluminescence properties of YBO 3:Ce3+ phosphor prepared by hydrothermal method

Ogata, H., Takeshita, S., Isobe, T., Sawayama, T. & Niikura, S., 2011 Sep, In : Optical Materials. 33, 11, p. 1820-1824 5 p.

Research output: Contribution to journalArticle

27 Citations (Scopus)

Improvement of the photostability for YVO4:Bi 3+,Eu3+ nanoparticles synthesized by the citrate route

Takeshita, S., Watanabe, T., Isobe, T., Sawayama, T. & Niikura, S., 2011 Jan, In : Optical Materials. 33, 3, p. 323-326 4 p.

Research output: Contribution to journalArticle

38 Citations (Scopus)

Low-temperature wet chemical precipitation of YVO4:Bi 3+,Eu3+ nanophosphors via citrate precursors

Takeshita, S., Isobe, T., Sawayama, T. & Niikura, S., 2011 Dec 1, In : Progress in Crystal Growth and Characterization of Materials. 57, 4, p. 127-136 10 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Preparation of composite PMMA microbeads hybridized with fluorescent YVO4:Bi3+,Eu3+ nanoparticles

Akisada, K., Noguchi, Y. & Isobe, T., 2011 Jan 1, In : IOP Conference Series: Materials Science and Engineering. 18, SYMPOSIUM 5, 082014.

Research output: Contribution to journalConference article

Open Access
4 Citations (Scopus)

Preparation of Yb3+ doped GdPO4 nanoparticles by solution-based processing

Shimizu, T. & Isobe, T., 2011 Jan 1, In : IOP Conference Series: Materials Science and Engineering. 18, SYMPOSIUM 2A, 032021.

Research output: Contribution to journalConference article

Open Access
2 Citations (Scopus)

Wet chemical synthesis and photoluminescence properties of YVO 4:Bi3+,Eu3+ nanophosphors

Ogata, H., Watanabe, T., Takeshita, S., Isobe, T., Sawayama, T. & Niikura, S., 2011 Aug 31, In : IOP Conference Series: Materials Science and Engineering. 18, SYMPOSIUM 7, 102021.

Research output: Contribution to journalConference article

Open Access
7 Citations (Scopus)
2010

Effective wavelength conversion from near-UV to red for photovoltaics: Potential of transparent YVO4:Bi3+,Eu3+ nanophosphor film

Takeshita, S., Nakayama, K., Isobe, T., Sawayama, T. & Niikura, S., 2010 Dec 1, Photovoltaics and Optoelectronics from Nanoparticles. p. 83-88 6 p. (Materials Research Society Symposium Proceedings; vol. 1260).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Effects of citrate additive on transparency and photostability properties of YVO4: Bi3+, Eu3+ nanophosphor

Takeshita, S., Ogata, H., Isobe, T., Sawayama, T. & Niikura, S., 2010 Feb 16, In : Journal of the Electrochemical Society. 157, 3, p. J74-J80

Research output: Contribution to journalArticle

36 Citations (Scopus)

Photostability of YAG: Ce3+ nanophosphors synthesized by glycothermal method

Kamiyama, Y., Hiroshima, T., Isobe, T., Koizuka, T. & Takashima, S., 2010 Apr 27, In : Journal of the Electrochemical Society. 157, 5, p. J149-J154

Research output: Contribution to journalArticle

45 Citations (Scopus)

Size-tunable solvothermal synthesis of Zn2GeO 4:Mn2+ nanophosphor in water/diethylene glycol system

Takeshita, S., Honda, J., Isobe, T., Sawayama, T. & Niikura, S., 2010 Oct 6, In : Crystal Growth and Design. 10, 10, p. 4494-4500 7 p.

Research output: Contribution to journalArticle

48 Citations (Scopus)
2009

Characterization and biological application of YAG:Ce3+ nanophosphor modified with mercaptopropyl trimethoxy silane

Tsukamoto, A. & Isobe, T., 2009 Mar 1, In : Journal of Materials Science. 44, 5, p. 1344-1350 7 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Characterization of ZnGa2O4:Mn2+ nanophosphor synthesized by the solvothermal method in 1,4-butanediol-water system

Takesada, M., Osada, M. & Isobe, T., 2009 Feb 1, In : Journal of Physics and Chemistry of Solids. 70, 2, p. 281-285 5 p.

Research output: Contribution to journalArticle

25 Citations (Scopus)

Comparison between MgGa2O4:Mn2+ and ZnGa2O4:Mn2+ nanophosphors synthesized by glycothermal method

Osada, M., Takesada, M. & Isobe, T., 2009 Nov 25, ECS Transactions - Physics and Chemistry of Luminescent Materials, Including the 4th Symposium on Persistent Phosphors. 31 ed. p. 75-80 6 p. (ECS Transactions; vol. 16, no. 31).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Effects of the homogeneous Bi3+ doping process on photoluminescence properties of YVO4:Bi3+,Eu3+ nanophosphor

Takeshita, S., Isobe, T., Sawayama, T. & Niikura, S., 2009 Sep 1, In : Journal of Luminescence. 129, 9, p. 1067-1072 6 p.

Research output: Contribution to journalArticle

56 Citations (Scopus)

Glycothermal synthesis and characterization of scheelite-type NaEuW 2 O8 nanophosphors

Kasuya, R. & Isobe, T., 2009 Aug 7, In : Journal of the Electrochemical Society. 156, 9, p. J278-J282

Research output: Contribution to journalArticle

2 Citations (Scopus)

Glycothermal synthesis and photoluminescence of MgGa2O 4:Mn2+ nanophosphors: Comparison to ZnGa2O 4:Mn2+ nanophosphors

Takesada, M., Osada, M. & Isobe, T., 2009 Apr 8, In : Journal of the Electrochemical Society. 156, 5, p. J97-J101

Research output: Contribution to journalArticle

10 Citations (Scopus)

Optical properties of transparent wavelength-conversion film prepared from YVO4: Bi3+, Eu3+ nanophosphors

Takeshita, S., Nakayama, K., Isobe, T., Sawayama, T. & Niikura, S., 2009 Aug 7, In : Journal of the Electrochemical Society. 156, 9, p. J273-J277

Research output: Contribution to journalArticle

26 Citations (Scopus)

Photobleaching properties of YVO4:Eu3+ nanophosphors synthesized by hydrothermal treatment

Muto, T., Takeshita, S., Isobe, T., Sawayama, T. & Niikura, S., 2009 Nov 25, ECS Transactions - Physics and Chemistry of Luminescent Materials, Including the 4th Symposium on Persistent Phosphors. 31 ed. p. 135-140 6 p. (ECS Transactions; vol. 16, no. 31).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Preparation and biological application of fluorescent poly(methyl methacrylate) Beads Hybridized with Y3Al5O 12:Ce3+ nanophosphor

Kusayama, I., Asakura, R., Saito, D., Isobe, T., Kurokawa, K., Aizawa, H., Takagi, T., Hirayama, Y. & Ohkubo, M., 2009 Nov 25, ECS Transactions - Physics and Chemistry of Luminescent Materials, Including the 4th Symposium on Persistent Phosphors. 31 ed. p. 69-74 6 p. (ECS Transactions; vol. 16, no. 31).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2008

Fluorescent and magnetic resonance imaging by rare earth doped nanoparticles with garnet structure

Asakura, R., Sakane, H., Noda, K., Isobe, T., Morita, M. & Inubushi, T., 2008 Dec 1, Quantum-Dot and Nanoparticle Bioconjugates-Tools for Sensing and Biomedical Imaging. p. 24-29 6 p. (Materials Research Society Symposium Proceedings; vol. 1064).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Low-temperature wet chemical synthesis and photoluminescence properties of YVO4: Bi3+, Eu3+ nanophosphors

Takeshita, S., Isobe, T. & Niikura, S., 2008 Sep 1, In : Journal of Luminescence. 128, 9, p. 1515-1522 8 p.

Research output: Contribution to journalArticle

64 Citations (Scopus)
2007

Characteristic optical properties of transparent color conversion film prepared from YAG: Ce3+ nanoparticles

Kasuya, R., Kawano, A., Isobe, T., Kuma, H. & Katano, J., 2007 Sep 21, In : Applied Physics Letters. 91, 11, 111916.

Research output: Contribution to journalArticle

104 Citations (Scopus)

Effects of citric acid additive on photoluminescence properties of YAG:Ce3+ nanoparticles synthesized by glycothermal reaction

Asakura, R., Isobe, T., Kurokawa, K., Takagi, T., Aizawa, H. & Ohkubo, M., 2007 Dec 1, In : Journal of Luminescence. 127, 2, p. 416-422 7 p.

Research output: Contribution to journalArticle

39 Citations (Scopus)

Glycothermal synthesis and magnetic properties of YIG/YAG nanoparticles

Noda, K., Asakura, R., Isobe, T., Morita, M., Kurokawa, K., Inubushi, T., Takagi, T. & Ohkubo, M., 2007 Jan 1, Advances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia. PART 1 ed. Trans Tech Publications Ltd, p. 863-866 4 p. (Solid State Phenomena; vol. 124-126, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Glycothermal synthesis of ZnGa2O4:Mn2+ nanophosphor and change in its photoluminescence intensity by heat-treatment

Takesada, M., Isobe, T., Takahashi, H. & Itoh, S., 2007 Mar 16, In : Journal of the Electrochemical Society. 154, 4, p. J136-J140

Research output: Contribution to journalArticle

12 Citations (Scopus)

Low temperature wet chemical synthesis of nanophosphors in the presence of coordinating molecules

Isobe, T., 2007 Dec 1, p. 2125-2130. 6 p.

Research output: Contribution to conferencePaper

Preparation of fluorescent poly(methyl methacrylate) beads hybridized with y3Al5O12:Ce3+ nanophosphor for biological application

Asakura, R., Kusayama, I., Saito, D., Isobe, T., Kurokawa, K., Hirayama, Y., Aizawa, H., Takagi, T. & Ohkubo, M., 2007 Aug 6, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 46, 8 A, p. 5193-5195 3 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)
2006

Effects of post calcination treatment on photoluminescence and structural properties of scheelite-type LiEuW2O8 nanocrystals synthesized by glycothermal reaction

Kasuya, R., Isobe, T., Yamao, S. & Sfihi, H., 2006 Jan 1, Nanofunctional Materials, Nanostructures and Novel Devices for Biological and Chemical Detection. Materials Research Society, p. 155-160 6 p. (Materials Research Society Symposium Proceedings; vol. 951).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fabrication of a novel fluorescent material by conjugation of Q-dots with particles

Ueno, T., Isobe, T. & Fujimoto, K., 2006 Oct 19. 1 p.

Research output: Contribution to conferencePaper

Glycothermal synthesis and photoluminescence of YAG:Ce3+ nanophosphors

Kasuya, R., Isobe, T. & Kuma, H., 2006 Feb 9, In : Journal of Alloys and Compounds. 408-412, p. 820-823 4 p.

Research output: Contribution to journalConference article

84 Citations (Scopus)

Low-temperature synthesis and photoluminescence of IIA-VIB nano-phosphors doped with rare earth ions

Sawada, N., Chen, Y. & Isobe, T., 2006 Feb 9, In : Journal of Alloys and Compounds. 408-412, p. 824-827 4 p.

Research output: Contribution to journalConference article

15 Citations (Scopus)
15 Citations (Scopus)

Photoluminescence and chemical properties of ZnS:Mn2+ nanocrystal powder synthesized in the AOT reverse micelles modified with lauryl phosphate

Sfihi, H., Takahashi, H., Sato, W. & Isobe, T., 2006 Nov 9, In : Journal of Alloys and Compounds. 424, 1-2, p. 187-192 6 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Tagging of avidin immobilized beads with biotinylated YAG:Ce3+ nanocrystal phosphor

Asakura, R., Isobe, T., Kurokawa, K., Aizawa, H. & Ohkubo, M., 2006 Nov 1, In : Analytical and bioanalytical chemistry. 386, 6, p. 1641-1647 7 p.

Research output: Contribution to journalArticle

36 Citations (Scopus)
2005

Characterization on thermal stability of ZnS:Mn 2+ /MPS/SiO 2 nano-phosphor film

Kubo, H., Isobe, T., Takahashi, H. & Itoh, S., 2005 May 15, In : Applied Surface Science. 244, 1-4, p. 465-468 4 p.

Research output: Contribution to journalConference article

7 Citations (Scopus)

Effects of surface modification on photoluminescence properties of LaPO4:Ce,Tb nano-phosphor synthesized by solvotliernial reaction

Nishimura, F. & Isobe, T., 2005 Dec 1, p. 513-516. 4 p.

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Luminescent properties of ZnS:Mn2+ nanocrystals/SiO2 hybrid phosphor synthesized by in situ surface modification co-precipitation

Hattori, Y., Isobe, T., Takahashi, H. & Itoh, S., 2005 May 1, In : Journal of Luminescence. 113, 1-2, p. 69-78 10 p.

Research output: Contribution to journalArticle

40 Citations (Scopus)

Photoluminescence enhancement of PEG-modified YAG:Ce3+ nanocrystal phosphor prepared by glycothermal method

Kasuya, R., Isobe, T., Kuma, H. & Katano, J., 2005 Dec 1, In : Journal of Physical Chemistry B. 109, 47, p. 22126-22130 5 p.

Research output: Contribution to journalArticle

122 Citations (Scopus)
16 Citations (Scopus)
2004

Low-temperature synthesis of nanosize Zn2SiO4:Mn 2+ phosphor from the precursor sol in supercritical ethanol and its photoluminescent properties

Miki, T., Ogawa, T., Isobe, T. & Sfihi, H., 2004 Aug 1, In : Journal of Sol-Gel Science and Technology. 31, 1-3 SPEC.ISS., p. 73-77 5 p.

Research output: Contribution to journalReview article

18 Citations (Scopus)
2003

Solid-state 1H and 27Al NMR studies of amorphous aluminum hydroxides

Isobe, T., Watanabe, T., D'Espinose De La Caillerie, J. B., Legrand, A. P. & Massiot, D., 2003 May 15, In : Journal of Colloid And Interface Science. 261, 2, p. 320-324 5 p.

Research output: Contribution to journalArticle

70 Citations (Scopus)

UV-Induced formation of [Fe(bpy)3]2+ complex and its confinement into silica fine particles

Nakanishi, C., Ikeda, S., Isobe, T. & Senna, M., 2003 Jan 1, In : Journal of Sol-Gel Science and Technology. 26, 1-3, p. 103-106 4 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2002

A thermoluminescence study on the state of Cl in ZnS:Ag by electron beam

Igarashi, T., Kusunoki, T., Ohno, K., Isobe, T. & Senna, M., 2002 Mar 1, In : Materials Research Bulletin. 37, 3, p. 533-539 7 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Electronic states of Mn2+ in ZnS:Mn nanoparticle examined by EPR measurements and molecular orbital calculation

Nagare, S., Isobe, T. & Senna, M., 2002 Jan 1, In : Materials Research Society Symposium - Proceedings. 704, p. 99-104 6 p.

Research output: Contribution to journalArticle

49 Citations (Scopus)

Role of molecular strain on the solid-state synthesis of coordination compounds from iron(II) chloride tetrahydrate and 1,10-phenanthroline under mechanical stress

Ohshita, T., Nakajima, D., Tsukamoto, A., Tsuchiya, N., Isobe, T., Senna, M., Yoshioka, N. & Inoue, H., 2002 Jan 1, In : Annales de Chimie: Science des Materiaux. 27, 6, p. 91-101 11 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)

Silica-[Fe(bpy)3]2+ composite particles with photo-responsive change of color and magnetic property

Nakanishi, C., Ikeda, S., Isobe, T. & Senna, M., 2002 Mar 25, In : Materials Research Bulletin. 37, 4, p. 647-651 5 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)