9-(2-Ethylhexyl)carbazole for carrier transport and photorefractive materials

T. Aoyama, Jean Charles Maurice Ribierre, T. Sassa, T. Kobayashi, T. Muto, T. Wada

研究成果: Contribution to journalConference article査読

1 被引用数 (Scopus)


We investigated the carrier transport and photorefractive properties in multi-component materials containing 9-(2-ethylhexyl)carbazole (EHCz), so-called liquid carbazole. The electric-field dependence of the carrier mobility for EHCz and polyvinylcarbazole (PVK) was measured by the time-of-flight (TOP) technique. We obtained the higher carrier mobility of 4.2×10 -6 cm 2 /Vs with an electric field of 2.5×10 5 V/cm for EHCz than that of 6.4×10 -7 cm 2 /Vs for PVK. We also performed the two-beam coupling (TBC) technique to investigate photorefractive responses for the guest-host polymers containing PVK, EHCz, the electro-optic chromophore 4-piperidinobenzylidene malonitrile (PDCST), and the sensitizer C 60 . The measurement showed that the TBC gain depended on the mixture ratio of PVK and EHCz. The TBC gain was enhanced from 31 to 85 cm -1 at an electric field of 60 V/μm by increasing the concentration of EHCz from 10 to 15 wt%. These results show that EHCz plays important role for the optoelectronic and photorefractive materials as a hole transport materials as well as a plasticizer.

ジャーナルProceedings of SPIE - The International Society for Optical Engineering
出版ステータス出版済み - 12 1 2004
イベントOrganic Holographic Materials and Applications II - Denver, CO, 米国
継続期間: 8 5 20048 5 2004

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学


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