Search Results - "Ohtani, Naoki"

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  1. 1

    Synthesis of branched inner-core oligosaccharides of neisserial lipooligosaccharides by Ichiyanagi, Tsuyoshi, Narimoto, Hirofumi, Ohtani, Naoki

    Published in Tetrahedron (10-09-2021)
    “…In this study, branched inner-core oligosaccharides of neisserial lipooligosaccharides was successively synthesized. We found that the glycosylation of a…”
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    Journal Article
  2. 2

    Study of isolation method of green fluorescent pigments contained in cherry tomatoes using column chromatography by Noma, Aoi, Ohtani, Naoki

    Published in Japanese Journal of Applied Physics (01-02-2020)
    “…We investigated a method to isolate the green fluorescent pigments contained in cherry tomatoes using column chromatography. To determine the best developing…”
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    Journal Article
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    Structural and optical studies of pure and Ni-doped ZnO nanoparticles synthesized by simple solution combustion method by Silambarasan, Murugesan, Saravanan, Shanmugam, Ohtani, Naoki, Soga, Tetsuo

    Published in Japanese Journal of Applied Physics (01-05-2014)
    “…In this paper, the structural and optical studies of pure and Ni-doped ZnO nanoparticles synthesized by the simple solution combustion method are reported. The…”
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    Journal Article
  4. 4

    Fabrication and optical characterization of organic-inorganic hybrid films using ultraviolet-curable silsesquioxanes by Akiyama, Hironori, Ohtani, Naoki

    Published in Japanese Journal of Applied Physics (01-02-2014)
    “…Novel organic-inorganic hybrid materials consisting of organic emissive materials in SiO2 were fabricated by an ultraviolet (UV) curing method using curable…”
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  5. 5

    Transmission electron microscope observation of organic–inorganic hybrid thin active layers of light-emitting diodes by Jitsui, Yusuke, Ohtani, Naoki

    Published in Nanoscale research letters (25-10-2012)
    “…We performed transmission electron microscope (TEM) observation of organic–inorganic hybrid thin films fabricated by the sol–gel reaction and used as the…”
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  6. 6

    Characterization of dopant density dependence on transmittance and resistance of ZnO films fabricated using spin-coating method by Morita, Yusuke, Emoto, Akira, Ohtani, Naoki

    Published in Molecular Crystals and Liquid Crystals (11-12-2016)
    “…We fabricated aluminum (Al) and gallium (Ga) co-doped ZnO films by wet-process and evaluated their sheet resistances and transmission spectra. It was found…”
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    Journal Article
  7. 7

    Fabrication of ultra-high density InAs-stacked quantum dots by strain-controlled growth on InP(3 1 1)B substrate by Akahane, Kouichi, Ohtani, Naoki, Okada, Yoshitaka, Kawabe, Mitsuo

    Published in Journal of crystal growth (01-11-2002)
    “…We have fabricated stacked InAs quantum dots (QDs) on InP(3 1 1)B substrates. An ultra-high density of QDs was obtained by a method of compensation of strain…”
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  8. 8

    Fabrication of Organic Light-Emitting Diodes Using Photosynthetic Pigments Extracted from Spinach by Ohtani, Naoki, Kitagawa, Natsuko, Matsuda, Takashi

    Published in Japanese Journal of Applied Physics (01-01-2011)
    “…We fabricated organic light-emitting diodes (OLEDs) containing chlorophylls in the active region, which were extracted from spinach using a chemical method…”
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  9. 9

    Fabrication of near-infrared polymer light-emitting-diodes using dispersed laser dye by Jitsui, Yusuke, Ohtani, Naoki

    Published in Journal of the Korean Physical Society (01-05-2012)
    “…The purpose of this research is to fabricate polymer light-emitting diodes (PLEDs) operating in the near-infrared (NIR) region. IR-140 is a laser-dye, whose…”
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  10. 10

    Long-wavelength light emission from InAs quantum dots covered by GaAsSb grown on GaAs substrates by Akahane, Kouichi, Yamamoto, Naokatsu, Ohtani, Naoki

    “…We fabricated InAs quantum dots (QDs) with a GaAsSb strain-reducing layer (SRL) on a GaAs(0 0 1) substrate. The wavelength of emission from InAs QD is shown to…”
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  11. 11

    Polymer light-emitting diodes operating in ultraviolet region consisting of simple bilayer polymer thin film by Takahashi, Masayuki, Ohtani, Naoki

    Published in Molecular Crystals and Liquid Crystals (02-09-2023)
    “…We fabricated polymer light-emitting diodes (PLEDs) operating in the ultraviolet (UV) region by a wet-process. The samples consist of only a simple bilayer…”
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    White Organic Light-Emitting Diodes Using Two Phosphorescence Materials in a Starburst Hole-Transporting Layer by Inden, Tomoya, Hishida, Tomoya, Takahashi, Masayuki, Ohsumi, Masato, Ohtani, Naoki

    Published in International journal of photoenergy (01-01-2012)
    “…We fabricated two kinds of white organic light-emitting diodes (WOLEDs); one consisted of two emissive materials of red and blue, and the other of three…”
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  14. 14

    (In)GaSb/AlGaSb quantum wells grown on Si substrates by Akahane, Kouichi, Yamamoto, Naokatsu, Gozu, Shin-ichiro, Ueta, Akio, Ohtani, Naoki

    Published in Thin solid films (26-03-2007)
    “…We have successfully grown GaSb and InGaSb quantum wells (QW) on a Si(001) substrate, and evaluated their optical properties using photoluminescence (PL). The…”
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    Journal Article Conference Proceeding
  15. 15

    Fabrication and Characterization of Carbon Nitride Fluorescent Material Using Annealed Melamine by Wada, Katsuya, Ohtani, Naoki

    Published in physica status solidi (b) (01-06-2019)
    “…Fluorescent carbon nitride (CN) thin films are fabricated by annealing melamine powder. Four kinds of fabrication methods are tested: (1) annealing melamine…”
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  16. 16

    Anomalous photoluminescence properties of emissive polymer originating from modulated chemical structures affected by antioxidant effect of natural β-carotene by Magata, Yuuki, Ohtani, Naoki

    Published in Japanese Journal of Applied Physics (01-05-2021)
    “…Abstract We investigated the antioxidant effect of natural β -carotene on the photoluminescence (PL) properties of emissive polymers and extracted the β…”
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    Journal Article
  17. 17

    Site control of very low density InAs QDs on patterned GaAs nano-wire surfaces by Ueta, Akio, Akahane, Kouichi, Gozu, Sinichiro, Yamamoto, Naokatsu, Ohtani, Naoki, Tsuchiya, Masahiro

    Published in Journal of crystal growth (01-04-2007)
    “…Self-organized InAs quantum dots (QDs) were grown on patterned GaAs substrates. A 2.5-ML-thick InAs grown on self-organized GaAs nano-wire surfaces showed QD…”
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    Journal Article Conference Proceeding
  18. 18

    Fabrication of sodium-doped graphitic carbon nitride for photoelectrochemical water splitting into hydrogen by Kurita, Yuhei, Aoki, Mizuki, Ohtani, Naoki

    Published in Japanese Journal of Applied Physics (01-01-2024)
    “…Abstract We observed and analyzed the physical properties of samples that underwent hydrothermal polymerization in a sodium hydroxide (NaOH) solution applied…”
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  19. 19

    Preparation of red fluorescent materials for a solution process using europium-doped benzoguanamine by Niimi, Takahiro, Takemura, Haruki, Ohtani, Naoki

    Published in Japanese Journal of Applied Physics (29-02-2024)
    “…Abstract This study aims to develop a novel, efficient, and stable red-emitting material using benzoguanamine in which europium (Eu) is doped. We have…”
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