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

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

doi:10.1117/12.559242

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

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

Center for Organic Photonics and Electronics Research(OPERA)

Research output: Contribution to journal › Conference article › peer-review

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 language	English
Article number	03
Pages (from-to)	9-16
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5521
DOIs	https://doi.org/10.1117/12.559242
Publication status	Published - Dec 1 2004
Event	Organic Holographic Materials and Applications II - Denver, CO, United States Duration: Aug 5 2004 → Aug 5 2004

All Science Journal Classification (ASJC) codes

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

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title = "9-(2-Ethylhexyl)carbazole for carrier transport and photorefractive materials",

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. ",

author = "T. Aoyama and Ribierre, {Jean Charles Maurice} and T. Sassa and T. Kobayashi and T. Muto and T. Wada",

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T1 - 9-(2-Ethylhexyl)carbazole for carrier transport and photorefractive materials

AU - Aoyama, T.

AU - Ribierre, Jean Charles Maurice

AU - Sassa, T.

AU - Kobayashi, T.

AU - Muto, T.

AU - Wada, T.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - 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.

AB - 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.

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T2 - Organic Holographic Materials and Applications II

Y2 - 5 August 2004 through 5 August 2004

ER -

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

Abstract

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