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Hiroyuki Sasabe

Researcher at Chitose Institute of Science and Technology

Publications -  341
Citations -  10091

Hiroyuki Sasabe is an academic researcher from Chitose Institute of Science and Technology. The author has contributed to research in topics: Carbazole & Monolayer. The author has an hindex of 50, co-authored 341 publications receiving 9796 citations. Previous affiliations of Hiroyuki Sasabe include University of Toyama & Rohm.

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Organic Optical Limiter with a Strong Nonlinear Absorptive Response

TL;DR: A nonhomogeneous distribution of indium tetra(tert-butyl)phthalocyanine chloride along the beam path substantially enhances the excited-state absorption, yielding an optical limiter with a linear transmittance of 0.70 that can attenuate 8-nanosecond, 532-nanometer laser pulses by factors of up to 540.
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100% phosphorescence quantum efficiency of Ir(III) complexes in organic semiconductor films

TL;DR: In this article, three Ir(III) complexes used as principal dopants in organic electrophosphorescent diodes have very high photoluminescence quantum efficiency (ηPL) in a solid-state film.
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Intermolecular interaction and a concentration-quenching mechanism of phosphorescent Ir(III) complexes in a solid film.

TL;DR: In this article, the authors investigated solid-state self-quenching processes of highly efficient Ir(III) phosphorescent emitters by measuring thin film photoluminescence quantum efficiency and transient lifetime as a function of doping concentration in host matrix.
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Triplet exciton confinement and unconfinement by adjacent hole-transport layers

TL;DR: In this paper, the triplet exciton of Ir(ppy)3 was investigated in hole-transport layers, and the authors compared energy-dissipative processes of the three-way exciton in 4,4′-bis, 1,1-bis and TAPC hosts.
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Surface Phase Behavior of n-Alkanethiol Self-Assembled Monolayers Adsorbed on Au(111): An Atomic Force Microscope Study

TL;DR: In this article, self-assembled monolayers (SAMs) adsorbed on Au(111) were studied with an atomic force microscope (AFM) to confirm the influence of the lateral interaction between adsorbe...