論文 - 梅津 郁朗
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Simulation of effect of pulse width on super saturated doping by pulsed laser melting method
Shou Nakagawa, Ikurou Umezu, Akira Sugimura
Mem. konan Univ. , Sci. & Eng Ser. 56 1 2009年4月
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Trap state emission of water-soluble CdS nanocrystals
W. Lü, Y. Tokuhiro, I. Umezu, A. Sugimura, Y. Nagasaki
Physica Status Solidi (C) Current Topics in Solid State Physics 6 ( 1 ) 346 - 349 2009年
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We prepared water-soluble CdS nanocrystals (NCs) capped by the poly (ethylene glycol)b-poly (2-(N,N-dimethylammojethyl methacrylate) chain. The photoluminescence (PL) properties of CdS NCs are investigated by time-resolved and temperature-dependent PL spectra. It IB found that the PL band of CdS NCs is dominated by two trap state emissions, respectively. Due to the trap state emissions, fluorescent resonance energy transfer from CdS NCs to organic dyes (Texasred) can be observed, which suggests the potential application of trap states of CdS NCs for fabrication of biosensors. © 2009 WILEY-VCH Verlag GmbH &
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InTaO4-based nanostructures synthesized by reactive pulsed laser ablation
Yoshida Takehito, Toyoyama Hirokazu, Umezu Ikurou, Sugimura Akira
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 93 ( 4 ) 961 - 966 2008年12月
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Oxidation processes of surface hydrogenated silicon nanocrystallites prepared by pulsed laser ablation and their effects on the photoluminescence wavelength （共著）
I. Umezu, A. Sugimura, T. Makino, M. Inada and K. Matsumoto
J. Appl. Phys. 2008年11月
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担当区分：筆頭著者
J. Appl. Phys. 103, (2008) 024305
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Collective Transport in Silicon Nanocrystal Assembly Prepared by Laser Ablation Method 査読あり
Akira Sugimura, Manabu Gibo, Mitsuru Inada, Tadashi Saitoh, I Umezu
Mater. Res. Soc. Symp. Proc. 1145 2008年11月
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Formation of surface stabilized Si nanocrystal by pulsed laser ablation in hydrogen gas 査読あり
Ikurou Umezu, Issei Kondo, Akira Sugimura
Applied Physics A 93 717 - 720 2008年11月
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InTaO4-based nanostructures synthesized by reactive pulsed laser ablation 査読あり
Takehito Yoshida, Hirokazu Toyoyama, Ikurou Umezu, Akira Sugimura
Applied Physics A 93 961 - 966 2008年11月
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Surface hydrogenation of silicon nanocrystallites during pulsed laser ablation of silicon target in hydrogen background gas 査読あり
Ikurou Umezu, Masatoshi Takata, Akira Sugimura
J. Appl. Phys 103 11309 2008年11月
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担当区分：筆頭著者
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Evolution of Energy Transfer Process between Quantum Dots of Two Different Sizes during the Evaporation of Solvent 査読あり
W. Lu, I Umezu, A Sugimura
Japanese Journal of Applied Physics 47 6592 - 6595 2008年11月
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Oxidation processes of surface hydrogenated silicon nanocrystallites prepared by pulsed laser ablation and their effects on the photoluminescence wavelength 査読あり
Ikurou Umezu, Toshiharu Makino, Mitsuru Inada, Kimihisa Matsumoto, Akira Sugimura
Journal of Applied Physics 103 024305 2008年11月
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担当区分：筆頭著者
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Interfacial strain effects on optical response of CdSe/ZnS core/shell quantum dots
W Lu, I Umezu, A Sugimura
Mem.Konan Unive.Sci&Eng 53 153 - 161 2008年11月
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Collective transport in silicon nanocrystal assembly 査読あり
Manabu Gibo, Mitsuru Inada, Tadashi Saitoh, Ikurou Umezu, Akira Sugimura
Proceedings of The International Meeting for Future of Electron Devices 2008 115 - 116 2008年11月
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Direct observation of resonance energy transfer between two different sized quantum dots 査読あり
W Lü, I Umezu, A Sugimura
Proceeding of the 2nd Thailand Nanotechnology Conference 2008年11月
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Formation of surface stabilized Si nanocrystal by pulsed laser ablation in hydrogen gas
Umezu Ikurou, Kondo Issei, Sugimura Akira
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 93 ( 3 ) 717 - 720 2008年11月
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Evolution of Energy Transfer Process between Quantum Dots of Two Different Sizes during the Evaporation of Solvent
Lue Wei, Umezu Ikurou, Sugimura Akira
JAPANESE JOURNAL OF APPLIED PHYSICS 47 ( 8 ) 6592 - 6595 2008年8月
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Surface hydrogenation of silicon nanocrystallites during pulsed laser ablation of silicon target in hydrogen background gas
Umezu Ikurou, Takata Masatoshi, Sugimura Akira
JOURNAL OF APPLIED PHYSICS 103 ( 11 ) 2008年6月
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Oxidation processes of surface hydrogenated silicon nanocrystallites prepared by pulsed laser ablation and their effects on the photoluminescence wavelength
Umezu Ikurou, Sugimura Akira, Makino Toshiharu, Inada Mitsuru, Matsumoto Kimihisa
JOURNAL OF APPLIED PHYSICS 103 ( 2 ) 2008年1月
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Study of energy transfer in mixed system of two different sized quantum dots
Wei Lü, I Umezu, Akira Sugimura
Trends in NanoTechnology- TNT2007 2007年11月
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Mechanism of Electron-Hole Pair Generation and Light Emission for Electro-Luminescence Devices with Silicon Nano-Crystals Prepared by Laser Ablation Method
Sugimura and Koyama and Inada and Yoshida and Umezu
Proceedings of 28th international conference on the physics of semiconductors 2007年11月
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Excitation energy transfer based on trap states of CdS quantum dots 査読あり
Wei Lü, Ikurou Umezu, Akira Sugimura
Nanoinsight 2007 international conference 2007年11月
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