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

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

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Article number03
Pages (from-to)9-16
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5521
DOIs
Publication statusPublished - Dec 1 2004
EventOrganic Holographic Materials and Applications II - Denver, CO, United States
Duration: Aug 5 2004Aug 5 2004

Fingerprint

Photorefractive materials
Carrier transport
carbazoles
Electric Field
Carrier mobility
Electric fields
Electro-optics
Time-of-flight
Plasticizers
Optoelectronics
Chromophores
Electrooptical effects
Optoelectronic devices
Polymers
carrier mobility
Liquid
electric fields
Liquids
plasticizers
carbazole

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

9-(2-Ethylhexyl)carbazole for carrier transport and photorefractive materials. / Aoyama, T.; Ribierre, Jean Charles Maurice; Sassa, T.; Kobayashi, T.; Muto, T.; Wada, T.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5521, 03, 01.12.2004, p. 9-16.

Research output: Contribution to journalConference article

Aoyama, T. ; Ribierre, Jean Charles Maurice ; Sassa, T. ; Kobayashi, T. ; Muto, T. ; Wada, T. / 9-(2-Ethylhexyl)carbazole for carrier transport and photorefractive materials. In: Proceedings of SPIE - The International Society for Optical Engineering. 2004 ; Vol. 5521. pp. 9-16.
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