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

T. Aoyama; J. C. 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, J. C. Ribierre, T. Sassa, T. Kobayashi, T. Muto, T. Wada

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 cm²/Vs with an electric field of 2.5×10⁵ V/cm for EHCz than that of 6.4×10^-7 cm²/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 C₆₀. 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 - 2004
Externally published	Yes
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 cm2/Vs with an electric field of 2.5×105 V/cm for EHCz than that of 6.4×10-7 cm2/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 C60. 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, {J. C.} and T. Sassa and T. Kobayashi and T. Muto and T. Wada",

year = "2004",

doi = "10.1117/12.559242",

language = "English",

volume = "5521",

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journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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TY - JOUR

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

AU - Aoyama, T.

AU - Ribierre, J. C.

AU - Sassa, T.

AU - Kobayashi, T.

AU - Muto, T.

AU - Wada, T.

PY - 2004

Y1 - 2004

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 cm2/Vs with an electric field of 2.5×105 V/cm for EHCz than that of 6.4×10-7 cm2/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 C60. 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 cm2/Vs with an electric field of 2.5×105 V/cm for EHCz than that of 6.4×10-7 cm2/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 C60. 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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AN - SCOPUS:13444274663

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JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 03

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

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