Search Results - "Ishizumi, Atsushi"

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  1. 1

    Structural and luminescence properties of Eu-doped ZnO nanorods fabricated by a microemulsion method by Ishizumi, Atsushi, Kanemitsu, Yoshihiko

    Published in Applied physics letters (20-06-2005)
    “…We have studied photoluminescence (PL) properties of Eu-doped ZnO (ZnO:Eu) nanorods fabricated by a microemulsion method. The ZnO:Eu nanorods have a hexagonal…”
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    Journal Article
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    Single Crystals of 5,5′-Bis(4′-methoxybiphenyl-4-yl)-2,2′-bithiophene for Organic Laser Media by Mizuno, Hitoshi, Haku, U., Marutani, Yusuke, Ishizumi, Atsushi, Yanagi, Hisao, Sasaki, Fumio, Hotta, Shu

    Published in Advanced materials (Weinheim) (08-11-2012)
    “…Room temperature lasing was stably observed in air from an orthorhombic crystal of 5,5′‐bis(4′‐methoxybiphenyl‐4‐yl)‐2,2′‐bithiophene (BP2T‐OMe). A pair of…”
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    Journal Article
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    Predicting the band gap of ZnO quantum dots via supervised machine learning models by Regonia, Paul Rossener, Pelicano, Christian Mark, Tani, Ryosuke, Ishizumi, Atsushi, Yanagi, Hisao, Ikeda, Kazushi

    Published in Optik (Stuttgart) (01-04-2020)
    “…•Optical band gap of ZnO QDs is predicted using supervised ML models.•KRR with quadratic features had lower error than effective-mass model.•Machine learning…”
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    Journal Article
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    Blue-light emission at room temperature from Ar+-irradiated SrTiO3 by Kan, Daisuke, Terashima, Takahito, Kanda, Ryoko, Masuno, Atsunobu, Tanaka, Kazunori, Chu, Shucheng, Kan, Hirofumi, Ishizumi, Atsushi, Kanemitsu, Yoshihiko, Shimakawa, Yuichi, Takano, Mikio

    Published in Nature materials (01-11-2005)
    “…Oxide-based electronic devices are expected to have fascinating properties, unlike those made from conventional semiconductors. SrTiO3 (STO) is a key material…”
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    Journal Article
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    Mn-Mn couplings in Mn-doped CdS nanocrystals studied by magnetic circular dichroism spectroscopy by Taguchi, Seiji, Ishizumi, Atsushi, Tayagaki, Takeshi, Kanemitsu, Yoshihiko

    Published in Applied physics letters (27-04-2009)
    “…We report on the optical and magnetic properties of Mn-doped CdS nanocrystals coated with a ZnS shell layer (CdS:Mn/ZnS core-shell nanocrystals) by magnetic…”
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    Journal Article
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    Resonant stimulation of Raman scattering from single-crystal thiophene/phenylene co-oligomers by Yanagi, Hisao, Marutani, Yusuke, Matsuoka, Naoki, Hiramatsu, Toru, Ishizumi, Atsushi, Sasaki, Fumio, Hotta, Shu

    Published in Applied physics letters (09-12-2013)
    “…Amplified Raman scattering was observed from single crystals of thiophene/phenylene co-oligomers (TPCOs). Under ns-pulsed excitation, the TPCO crystals…”
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    Journal Article
  7. 7

    Temperature Dependence of Structural and Optical Properties of ZnO Nanoparticles Formed by Simple Precipitation Method by Pelicano, Christian Mark, Magdaluyo, Eduardo, Ishizumi, Atsushi

    Published in MATEC Web of Conferences (2016)
    “…ZnO nanoparticles were successfully synthesized by a simple precipitation method. The effect of growth temperature on the structural and optical properties of…”
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    Journal Article Conference Proceeding
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    Water-Soluble Self-Assembled Butadiyne-Bridged Bisporphyrin: A Potential Two-Photon-Absorbing Photosensitizer for Photodynamic Therapy by Dy, Joanne T., Ogawa, Kazuya, Satake, Akiharu, Ishizumi, Atsushi, Kobuke, Yoshiaki

    Published in Chemistry : a European journal (01-01-2007)
    “…We have synthesized a novel, two‐photon‐absorbing photosensitizer for two‐photon‐absorption photodynamic therapy (2PA‐PDT). The molecule is a butadiyne‐bridged…”
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    Journal Article
  9. 9

    Blinking Behavior of Surface-Defect and Impurity Luminescence in Nondoped and Mn2+-Doped CdS Nanocrystals by ISHIZUMI, Atsushi, KANEMITSU, Yoshihiko

    Published in Journal of the Physical Society of Japan (01-08-2009)
    “…We report on the photoluminescence (PL) blinking behavior of nondoped and Mn-doped CdS/ZnS nanocrystals studied using single nanocrystal spectroscopy at room…”
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    Journal Article
  10. 10

    Multicarrier Recombination and Energy Transfer in Mn-Doped CdS Nanocrystals Studied by Femtosecond Pump--Probe Spectroscopy by Taguchi, Seiji, Ishizumi, Atsushi, Kanemitsu, Yoshihiko

    Published in Journal of the Physical Society of Japan (15-06-2010)
    “…We studied the photocarrier decay dynamics of Mn-doped CdS nanocrystals (NCs) coated with a ZnS shell layer by femtosecond pump--probe transient absorption…”
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    Journal Article
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    Space-resolved photoluminescence of ZnS:Cu,Al nanocrystals fabricated by sequential ion implantation by Ishizumi, Atsushi, White, C. W., Kanemitsu, Yoshihiko

    Published in Applied physics letters (29-03-2004)
    “…We report on photoluminescence (PL) properties of Cu- and Al-doped ZnS nanocrystals fabricated by sequential implantation of Zn+, S+, Cu+, and Al+ ions into…”
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    Journal Article
  13. 13

    The Origins of Photoluminescence Peaks in ZnO Nanocrystals Revealed by Microscopic Photoluminescence Imaging Spectroscopy by Yamamoto, Aishi, Satake, Yasuhiko, Atsuta, Satoshi, Taguchi, Yuko, Ishizumi, Atsushi

    Published in Journal of the Physical Society of Japan (15-05-2010)
    “…We report on the origins of photoluminescence (PL) peaks in ZnO nanocrystals (NCs) dispersed in glass films as determined using microscopic PL imaging…”
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    Journal Article
  14. 14

    Photoluminescence properties of single Mn-doped CdS nanocrystals studied by scanning near-field optical microscopy by Ishizumi, Atsushi, Matsuda, Kazunari, Saiki, Toshiharu, White, C. W., Kanemitsu, Yoshihiko

    Published in Applied physics letters (26-09-2005)
    “…We have fabricated Mn-doped CdS (CdS:Mn) nanocrystals embedded in Al 2 O 3 matrices by sequential ion implantation and studied their photoluminescence (PL)…”
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    Journal Article
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    Origin of efficient luminescence from GaN:Eu3+ epitaxial films revealed by microscopic photoluminescence imaging spectroscopy by Ishizumi, Atsushi, Sawahata, Junji, Akimoto, Katsuhiro, Kanemitsu, Yoshihiko

    Published in Applied physics letters (06-11-2006)
    “…We have studied photoluminescence (PL) properties of Eu3+-doped GaN (GaN:Eu3+) epitaxial films by microscopic PL imaging spectroscopy. The GaN:Eu3+ epitaxial…”
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    Journal Article
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    Photoluminescence Spectra and Dynamics of Al3+- and Ag+-Doped CdS Nanocrystals by Ishizumi, Atsushi

    Published in Journal of the Physical Society of Japan (15-09-2010)
    “…We report on the photoluminescence (PL) spectra and dynamics of Al 3+ - and Ag + -doped CdS/ZnS core/shell nanocrystals (CdS:Al,Ag NCs). The CdS:Al,Ag NCs show…”
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    Journal Article
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    Influence of atmosphere on photoluminescence properties of Eu-doped ZnO nanocrystals by Ishizumi, Atsushi, Fujita, Satoshi, Yanagi, Hisao

    Published in Optical materials (01-05-2011)
    “…We have fabricated Eu 3+-doped ZnO (ZnO:Eu) nanocrystals (NCs) by a reverse micelle method, and have studied their photoluminescence (PL) properties in vacuum,…”
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    Journal Article
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