Papers - UMEZU Ikurou
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Correlation between natural oxidation process and photoluminescence properties of hydrogenated Si nanocrystallites prepared by pulsed laser ablation
Matsumoto K, Inada M, Umezu I, Sugimura A
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 44 ( 12 ) 8742 - 8746 2005.12
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A correlation between natural oxidation process and PL properties of hydrogenated Si nanocrystallites prepared by pulsed laser ablation. （共著）
K. Matsumoto, M. Inada, I. Umezu and A. Sugimura.
Jpn. J. Appl. Phys. 44, 8742 - 8746 2005.11
Joint Work
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Correlation between PL emission band and growth of oxide layer on surface of silicon nanocrystallites（共著）
I. UMEZU, M. Koyama, T. Hasegawa, K. Matsumoto, M. Inada and A. Sugimura.
AIP conference proceedings (The Proceedings of the 27th International Conference on the Physics of Semiconductors) 772, 855 - 856 2005.11
Joint Work
Authorship：Lead author
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Correlation between electronic structure and chemical bond on the surface of hydrogenated silicon nanocrystallites. （共著）
I. UMEZU, T. Makino, M. Takata, M. Inada and A. Sugimura.
AIP conference proceedings (The Proceedings of the 27th International Conference on the Physics of Semiconductors) 772, . 691 - 692 2005.11
Joint Work
Authorship：Lead author
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Preparation of surface controlled silicon nanocrystallites by pulsed laser ablation. （共著）
I. UMEZU, M. Inada, T. Makino and A. Sugimura.
AIP conference proceedings (The Proceedings of the 27th International Conference on the Physics of Semiconductors) 772,. 861 - 862 2005.11
Joint Work
Authorship：Lead author
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Considereable enhancement of PL intensity for free exciton in ZnO ultra-fine-particles and oscillatory green band emergence in PL spectrum for Cu-doped ZnO ultra-fine particles with heat treatment. （共著）
H. Kobori, T. Nanao, S. Kawaguchi, I. Umezu and A. Sugimura.
The Proceedings of the 27th International Conference on the Physics of Semiconductors 867 - 868 2005.11
Joint Work
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"Temperature dependence of time-resolved luminescence spectra for 1D excitons in single-walled carbon nanotubes in micelles. （共著）
M. Ichida, I. Umezu, H. Kataura, M. Kimura, S. Suzuki, Y. Achiba and H. Ando.
Journal of Luminescence 112, 287 - 290 2005.11
Joint Work
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Formation of Hydrogen-passivated silicon Nanochains by Pulsed laser Ablation without Thermal Annealing
梅津郁郎
Mater. Res. Soc. Symp. Proc. 832, (2005)F7.24.1-F7.24.5. 2005.11
Single Work
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Structual and optical properties of surface-hydrogeneted silicon nanocrystallites prepeared by reactive pulsed laser ablation.（共著）
T.Makino,M.Inada,Umezu and A.Sugimura.
J. Phys. D 38, 3507 - 3511 2005.11
Joint Work
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Structural and optical properties of surface-hydrogenated silicon nanocrystallites prepared by reactive pulsed laser ablation
Makino T, Inada M, Umezu I, Sugimura A
JOURNAL OF PHYSICS D-APPLIED PHYSICS 38 ( 18 ) 3507 - 3511 2005.9
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Temperature dependence of time-resolved luminescence spectra for ID excitons in single-walled carbon nanotubes in micelles
Ichida M, Umezu I, Kataura H, Kimura M, Suzuki S, Achiba Y, Ando H
JOURNAL OF LUMINESCENCE 112 ( 1-4 ) 287 - 290 2005.4
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Correlation between PL emission band and growth of oxide layer on surface of silicon nanocrystallites
Umezu I, Koyama M, Hasegawa T, Matsumoto K, Inada M, Sugimura A
Physics of Semiconductors, Pts A and B 772 855 - 856 2005
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Correlation between electronic structure and chemical bond on the surface of hydrogenated silicon nanocrystallites
Umezu I, Makino T, Takata M, Inada M, Sugimura A
Physics of Semiconductors, Pts A and B 772 691 - 692 2005
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Considerable enhancement of PL intensity for free exciton in ZnO ultra-fine-particles and oscillatory green band emergence in PL spectrum for Cu-doped ZnO ultra-fine-particles with heat treatment
Kobori H, Nanao T, Kawaguchi S, Umezu I, Sugimura A
Physics of Semiconductors, Pts A and B 772 867 - 868 2005
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Preparation of surface controlled silicon nanocrystallites by pulsed laser ablation
Umezu I, Inada M, Makino T, Sugimura A
PHYSICS OF SEMICONDUCTORS, PTS A AND B 772 861 - 862 2005
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Correlation between surface oxide and photoluminescence properties of Si nanoparticles prepared by pulsed laser ablation（共著）
I. Umezu, K. Matsumoto, M. Inada, T. Makino and A. Sugimura
Applied Physics A 79, 1545 - 1547 2004.11
Joint Work
Authorship：Lead author
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Recombination process of CdS quantum dot covered by novel Polymer Chains（共著）
I. Umezu, R. Koizumi, A. Sugimoto, M. Inada, T. Makino, A. Sugimura, Y. Sunaga, T. Ishii and Y. Nagasaki
Physica E 21, 1102 - 1105 2004.11
Joint Work
Authorship：Lead author
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Optical and transport studies in coupled InAs quantum dots embedded in GaAs（共著）
M. Inada, I. Umezu, P. O. Vaccaro, S. Yamada and A. Sugimura
Physica E 21, 317 - 321 2004.11
Joint Work
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Inter-dot electron transport in coupled InAs quantum dots under magnetic field（共著）
M. Inada, I. Umezu, P. O. Vaccaro, S. Yamada and A. Sugimura
Semicond. Sci. Technol. 19, 54 - 55 2004.11
Joint Work
Semicond. Sci. Technol. 19, (2004)S54-S55,
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Structural and optical properties of silicon nanoparticles prepared by pulsed laser ablation in hydrogen backgrond gas（共著）
T. Makino, M. Inada1, K. Yoshida, I. Umezu and A. Sugimura1
Applied Physics A to be, 2004.11
Joint Work