Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Shin-ichiro Nagasaka"'
Autor:
Shin-ichiro Nagasaka, Hiroki Itoh, Kenta Shibukawa, Yasunao Kuriyama, Yoshitaka Katano, Takehisa Yoshinari, Yuki Kimura
Publikováno v:
physica status solidi (b). 248:233-238
Faculty of Science, Department of Material and Biological Chemistry, Yamagata University, Kojirakawa, 1-4-12,Yamagata 990-8560, JapanReceived 23 December 2009, revised 21 May 2010, accepted 1 June 2010Published online 5 July 2010Keywords absorption s
Autor:
Yoshitaka Katano, Shin Tanaka, Takehisa Yoshinari, Yuki Kimura, Hiroki Itoh, Yasunao Kuriyama, Shin-ichiro Nagasaka
Publikováno v:
Synthetic Metals. 160:1131-1135
Thermal cis–trans conversion has been examined in oligothiophene single molecules encapsulated in the molecular vessels of cyclodextrin and Na-mordenite. At high temperatures, optical absorption intensities are enhanced in bithiophene, terthiophene
Publikováno v:
physica status solidi (b). 247:2231-2239
Polarization dependence of the absorption spectra and the luminescence spectra in α-bithiophene and α -terthiophene has been measured directly with near normal incident light on the ab, bc, and ca crystal planes of their thick single crystals. The
Autor:
Shin Tanaka, Hiroki Itoh, Takehisa Yoshinari, Yuki Kimura, Shin-ichiro Nagasaka, Yoshitaka Katano, Yasunao Kuriyama
Publikováno v:
physica status solidi (a). 207:1474-1480
Polarization dependence of the absorption spectra (ABS) and the luminescence spectra in α-quaterthiophene (4T) and α-quinquethiophene (5T) has been measured directly with near normal incident light on the ab, bc, and ca crystal planes of their thic
Autor:
Yoshio Takahashi, Shin-ichiro Nagasaka, Takehisa Yoshinari, Yoshiyuki Kawazoe, Shohei Iwata, Yoshifumi Noguchi, Kaoru Ohno, Miou Furuya, Soh Ishii
Publikováno v:
Computational Materials Science. 36(1/2):125-129
Starting from the GW approximation (GWA) beyond the density functional theory a rid taking into account the excitonic effect, we have determined optical properties of isolated Zn atom and also Cu impurity atom in NaCl crystal. In the representation o
Publikováno v:
Journal of the Physical Society of Japan. 74:1737-1744
Phonon-sideband structures in absorption and emission spectra of oligomers are investigated using a theoretical model: A Frenkel exciton (or molecular excitation) moves among molecules of oligomers...
Autor:
Shin-ichiro Nagasaka, Hiroki Itoh, Bold Gombojav, Yasunao Kuriyama, Kiyohito Koyama, Takehisa Yoshinari
Publikováno v:
Journal of the Physical Society of Japan. 73:3166-3170
The temperature dependence of the absorption spectra of 2,2'-bithiophene and 2,2':5',2''-terthiophene isolated molecules in cyclodextrin (CyD) were investigated between 15 K to room temperature (RT). The optical absorption spectra of BT molecules in
Autor:
Takenari Goto, Bold Gombojav, Aishi Yamamoto, Nobuaki Takahashi, Shin-ichiro Nagasaka, Yoshio Takahashi, Takehisa Yoshinari, Atsuo Kasuya
Publikováno v:
Journal of Solid State Chemistry. 177:3479-3483
Highly purified single crystals of pyrene were made by a gas phase crystal growth method from 180 times of zone-refined pyrene. The absorption spectra of the single crystal have been transformed from the reflection spectra between 2.5 and 6.5 eV at 2
Autor:
Nasanbat Namsrai, Hiroki Itoh, Shin-ichiro Nagasaka, Bold Gombojav, Takehisa Yoshinari, Kiyohito Koyama
Publikováno v:
Journal of Solid State Chemistry. 177:2827-2832
In order to examine the effect of subsumption space of β- and γ-cyclodextrin (CyD) on the photophysics of oligothiophenes, 2, 2′-bithiophene (BT) and 2, 2′: 5′, 2″-terthiophene (TT), the fluorescence spectra were compared with those of the
Autor:
Chang Jun Ye, Bold Gombojav, Takehisa Yoshinari, Shin-ichiro Nagasaka, Yoshio Takahashi, Aishi Yamamoto, Takenari Goto, Atsuo Kasuya
Publikováno v:
Journal of the Physical Society of Japan. 72:2224-2228