Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Yasuyuki Sasada"'
Autor:
Yasuhiro Kondo, Sayuri Kitera, Kazuki Yoshiura, Hiroki Nishi, Hajime Gotoh, Susumu Oda, Motoki Yanai, Yasuyuki Sasada, Takuji Hatakeyama
Publikováno v:
Nature Photonics. 13:678-682
Luminescent materials that exhibit narrowband emission are vital for full-colour displays. Here, we report a thermally activated delayed-fluorescence material that exhibits ultrapure blue emission with full-width at half-maximum of just 14 nm. The em
Autor:
Akiko Kageyama, Takuji Hatakeyama, Soichiro Nakatsuka, Toshiaki Ikuta, Yasuyuki Sasada, Hajime Gotoh
Publikováno v:
Organometallics. 36:2622-2631
We report a short synthesis of phosphorus-fused triarylphosphine oxides, 5,9-dioxa-13b-oxophosphanaphtho[3,2,1-de]anthracenes (DOPNAs), based on a tandem phospha-Friedel–Crafts reaction. Phosphorescence, UV–visible absorption, and photoelectron y
Publikováno v:
Chemistry Letters. 47:920-922
Phosphorus-centered 4,8,12-triazatriangulene was identified as an efficient exciton blocking material for phosphorescent organic light-emitting diodes (PHOLEDs). The external quantum efficiency values of Ir(ppy)3-based green PHOLEDs were greatly impr
Publikováno v:
SID Symposium Digest of Technical Papers. 46:446-449
We have successfully developed two types of cellulose triacetate (TAC) polarizer protection films that meet the LCDs trends toward thinner and larger panels. The novel 25µm TAC film, which has high-hardness and high-durability, solves the problems c
Publikováno v:
Molecular Crystals and Liquid Crystals. 525:153-157
Triphenylene mesogens possessing fluorinated phenyl groups connected to the central triphenylene core with ester and ether linkages were compared on the mesomorphism. The results indicate that the fluorination of the peripheral phenyl groups arises s
Publikováno v:
Liquid Crystals. 34:569-576
A series of liquid crystalline compounds having the difluoropropyleneoxy moiety (–OCF2C2H4–) as a linking group has been synthesized. The physical properties, i.e. dielectric anisotropy, birefringence, viscosity and phase transition temperatures,
Liquid crystallineN-substituted-3,4-difluoropyrroles exhibiting large positive dielectric anisotropy
Publikováno v:
Liquid Crystals. 30:1371-1375
A series of liquid crystalline 3,4-difluoropyrrole derivatives have been synthesized, and their dielectric anisotropy, birefringence, viscosity and phase sequences have been measured. This novel class of compounds showed extremely large dielectric an
Publikováno v:
Polymer. 44:355-360
A convenient synthesis of regiocontrolled poly(2,6-dihydroxy-1,5-naphthylene) (PDHN) with high molecular weights by oxidative coupling polymerization of 2,6-dihydroxynaphthalene (2,6-DHN) has been developed. Polymerizations were conducted in 2-methox
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 40:393-398
A positive working photosensitive polymer based on poly(2,6-dihydroxy-1,5-naphthylene) (PDHN) with 1-(1,1-bis{4-[2-diazo-1(2H)naphthalene-5-sulfonyloxy]phenyl}ethyl)-4-(1-{4-[2-diazo-1(2H)naphthalene-5-sulfonyloxy]phenyl}methylethyl) benzene (S-DNQ)
Publikováno v:
Journal of Photopolymer Science and Technology. 15:197-200