Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Toshiki Koyama"'
Autor:
Musubu Ichikawa, J., Junko Amagi, J., Horiba, Yasuhiro, Toshiki Koyama, Yasuhiro, Yoshio Taniguchi, Yasuhiro
Publikováno v:
Journal of Applied Physics; 12/15/2003, Vol. 94 Issue 12, p7796-7800, 5p, 2 Diagrams, 4 Graphs
Autor:
Toshiki Koyama, Hayashi Shuichi, Musubu Ichikawa, Kenta Wakabayashi, Norirnasa Yokoyama, Yoshio Taniguchi
Publikováno v:
Organic Electronics. 11:1966-1973
We demonstrated that 1,3,5-tris([2′,2′′]bipyridin-6′-yl)benzene (BpyB) and 1,3,5-tris([2′,2′′,6′′,2′′′]terpyridin-6’-yl)benzene (TpyB) are good electron-transport (ET) layer materials for organic light-emitting devices (OLED
Autor:
Musubu Ichikawa, Masamitsu Inoue, Tetsuro Uchino, Yoshio Taniguchi, Takeo Tsuzuki, Tatsuya Kato, Hyeon-Gu Jeon, Toshiki Koyama
Publikováno v:
Organic Electronics. 11:1549-1554
We demonstrated the performance of thin-film transistors (TFTs) and single-crystal field-effect transistors (FETs) based on a trifluoromethyl-substituted alternating (thiophene/phenylene)-co-oligomer (AC5-CF3), 1,4-bis(5′-(4″-trifluoromethylpheny
Publikováno v:
Thin Solid Films. 518(2):563-566
The photoluminescence (PL) spectra from solid samples consisting of polystyrene and 5,10,15,20-tetraphenyl-21H,23H-porphine copper(II) (CuTPP) revealed two sharp peaks at 653 and 720 nm, and indicated another broad peak at around 780 nm, which could
Publikováno v:
The Journal of Physical Chemistry C. 113:11520-11523
We study electronic excitation processes in the organometallic phosphor of fac-tris(2-phenylpyridine) iridium(III) (Ir(ppy)3) and fluorescent dye of 2-{2-methyl-6-[2-(2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-9-yl)-vinyl]-pyran-4-ylidene}-mal
Publikováno v:
Japanese Journal of Applied Physics. 47:8961-8964
We have successfully demonstrated a significant fluorescence property in an organic crystal made of a thiophene/phenylene co-oligomer called AC5. The crystal showed no non radiative transition, meaning it has 100% internal fluorescent quantum efficie
Publikováno v:
Organic Electronics. 9:425-431
Article
ORGANIC ELECTRONICS. 9(4): 425-431(2008)
ORGANIC ELECTRONICS. 9(4): 425-431(2008)
Publikováno v:
physica status solidi (a). 205:1222-1225
We demonstrated improvements of photovoltaic performances of organic thin-film solar cells using an oxadiazole compound (Bpy-OXD) as an exciton blocking layer (EBL) material. Due to fast electron mobility of Bpy-OXD of above 10–3 cm2/Vs, the photov
Autor:
Soichi Fujimoto, Toshiki Koyama, Musubu Ichikawa, Norimasa Yokoyama, Yoshio Taniguchi, Yuta Miyazawa, Tetsuzo Miki
Publikováno v:
ORGANIC ELECTRONICS. 9(1):77-84
Article
ORGANIC ELECTRONICS. 9(1): 77-84 (2008)
ORGANIC ELECTRONICS. 9(1): 77-84 (2008)
Publikováno v:
Sen'i Gakkaishi. 64:11-14
Effects of carbon nano-fabric (CNFbc) as a nano-current-collect-layer on performances of direct methanol fuel cells (DMFCs) were determined. CNFbc was made using the electro-spinning method. CNFbc with an average diameter of 130 nm was placed between