Search Results - "Ishizumi, Atsushi"
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Structural and luminescence properties of Eu-doped ZnO nanorods fabricated by a microemulsion method
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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Single Crystals of 5,5′-Bis(4′-methoxybiphenyl-4-yl)-2,2′-bithiophene for Organic Laser Media
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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Predicting the band gap of ZnO quantum dots via supervised machine learning models
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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Blue-light emission at room temperature from Ar+-irradiated SrTiO3
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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Mn-Mn couplings in Mn-doped CdS nanocrystals studied by magnetic circular dichroism spectroscopy
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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Resonant stimulation of Raman scattering from single-crystal thiophene/phenylene co-oligomers
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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Temperature Dependence of Structural and Optical Properties of ZnO Nanoparticles Formed by Simple Precipitation Method
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
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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Blinking Behavior of Surface-Defect and Impurity Luminescence in Nondoped and Mn2+-Doped CdS Nanocrystals
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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Multicarrier Recombination and Energy Transfer in Mn-Doped CdS Nanocrystals Studied by Femtosecond Pump--Probe Spectroscopy
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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Space-resolved photoluminescence of ZnS:Cu,Al nanocrystals fabricated by sequential ion implantation
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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The Origins of Photoluminescence Peaks in ZnO Nanocrystals Revealed by Microscopic Photoluminescence Imaging Spectroscopy
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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Photoluminescence properties of single Mn-doped CdS nanocrystals studied by scanning near-field optical microscopy
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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Origin of efficient luminescence from GaN:Eu3+ epitaxial films revealed by microscopic photoluminescence imaging spectroscopy
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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Photoluminescence from Electrodeposited Zinc Oxide Films Modified with Eu Ions
Published in Japanese Journal of Applied Physics (01-01-2008)Get full text
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Blinking Behavior of Surface-Defect and Impurity Luminescence in Nondoped and Mn 2+ -Doped CdS Nanocrystals
Published in Journal of the Physical Society of Japan (15-08-2009)Get full text
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Photoluminescence Spectra and Dynamics of Al3+- and Ag+-Doped CdS Nanocrystals
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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Influence of atmosphere on photoluminescence properties of Eu-doped ZnO nanocrystals
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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Photoluminescence Spectra and Dynamics of Al 3+ - and Ag + -Doped CdS Nanocrystals
Published in Journal of the Physical Society of Japan (15-09-2010)Get full text
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