Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Hisakazu Takahashi"'
Autor:
Seiichiro Takahashi, Takahisa Sakakibara, Hisakazu Takahashi, Yasuko Hirayama, Takeshi Sano, Kenichi Shibata
Publikováno v:
Journal of Photopolymer Science and Technology. 17:319-322
Multi-layered polymer light-emitting diodes (ML-PLEDs) with the structure of [transparent anode / buffer-layer / emitting-layer / hole-blocking layer / cathode] have been fabricated by organic-all-wet coating process, and the device characteristics h
Publikováno v:
Scopus-Elsevier
Voltage increases of organic mono layered devices under constant-current operation were investigated in order to clarify the origin of the degradation of organic light emitting devices (OLED). The rate of voltage increase for tris(8-hydroxyquinoline)
Autor:
Tsutomu Yamada, Masahiro Itoh, Hisakazu Takahashi, Keith B. Kahen, Michael Louis Boroson, N. Komiya, Hiroshi Kanno, Gopalan Rajeswaran, Tukaram K. Hatwar, Stephen P. Barry, Kiyoshi Yoneda, Ryoichi Yokoyama
Publikováno v:
SID Symposium Digest of Technical Papers. 31:974-977
In October 1999, Eastman Kodak and Sanyo Electric jointly announced the development of a high quality, 2.4 inch diagonal Full Color active matrix Organic Light Emitting Diode (OLED) display. This technology demonstration resulted from the successful
Autor:
Takeshi Sano, Yuji Hamada, Kenichi Shibata, Yoshitaka Nishio, Tatsuro Usuki, Hisakazu Takahashi
Publikováno v:
Journal of Materials Chemistry. 10:157-161
Fluorescent metal complexes and dimers have been synthesized and used for organic light-emitting diodes. The metal complexes with conjugated molecular ligands have strong photoluminescence, and showed bright emission of over 10 000 cd m−2 in bilaye
Publikováno v:
Synthetic Metals. 91:27-30
Two dopants with condensed aromatic rings were examined. Hexabenzobenzene (coronene) and tri-peri-naphthylenebenzene (decacyclene) were respectively doped into blue organic electroluminescent (EL) cells. The coronene-doped cell exhibited a blue-green
Publikováno v:
Japanese Journal of Applied Physics. 35:5069-5073
We have investigated the microwave dielectric properties and crystal structure of the CaO–SrO–Li2O–Sm2O3Ln2O3–TiO2 system (Ln: lanthanide). This system is orthorhombic with a GdFeO3–type perovskite structure, which is the same as that of Ca
Autor:
Takashi Keumi, Hisakazu Takahashi, Ichiro Takahashi, Kazunori Matsuura, Toshio Morita, Yasuo Kimura, Hidehiko Kitajima
Publikováno v:
Bulletin of the Chemical Society of Japan. 67:757-765
Friedel–Crafts acylation, bromination, deuteration, and nitration of acetylpentamethylbenzene (APMB), 1-acetyl-2,3,4,6-tetramethylbenzene (ATMB), and 1-benzoyl-2,3,4,6-tetramethylbenzene (BTMB) and the resulting product distributions were investiga
Autor:
Takeshi Sano, Hiroyuki Fujii, Hisakazu Takahashi, Yuji Hamada, Kenichi Shibata, Tatsuro Usuki, Yoshitaka Nishio, Hiroshi Kanno
Publikováno v:
Applied Physics Letters. 72:1939-1941
A gallium complex (GaMq2Cl) consisting of two 2-methyl-8-hydroxyquinolines (Mq) and a chlorine was synthesized and used for the fabrication of organic light-emitting diodes (OLEDs). The photoluminescent peak of GaMq2Cl at 492 nm was as strong in inte
Autor:
Takeshi Sano, Yuji Hamada, Yoshitaka Nishio, Kenichi Shibata, Hiroyuki Fujii, Hisakazu Takahashi
Publikováno v:
Applied Physics Letters. 71:3338-3340
3- or 5-hydroxyflavone-metal complexes were synthesized and applied to organic light-emitting diodes (OLEDs) as an emitting material and an electron transport material. When bis(5-hydroxyflavonato)beryllium [Be(5Fla)2] was used as an emitting materia
Autor:
Michelle Lee Ricks, Jeffrey P. Spindler, Noritaka Saito, Yuuhiko Hamada, Gopalan Rajeswaran, Hisakazu Takahashi, Tukaram K. Hatwar, Kazunobu Mameno, Ryuji Nishikawa, Ralph H. Young
Publikováno v:
SPIE Proceedings.
Eastman Kodak Company and SANYO Electric Co., Ltd. recently demonstrated a 15" full-color, organic light-emitting diode display (OLED) using a high-efficiency white emitter combined with a color-filter array. Although useful for display applications,