Photorefractive properties of TNFM-sensitized PVK-based polymer composites and fully functionalized polymethacrylates

Eric Hendrickx; David Van Steenwinckel; Christiaan Engels; Elke Gubbelmans; Kurt Van den Broeck; David Beljonne; Jean Luc Bredas; Celest Samyn; Andre Persoons

doi:10.1117/12.406477

Photorefractive properties of TNFM-sensitized PVK-based polymer composites and fully functionalized polymethacrylates

Eric Hendrickx, David Van Steenwinckel, Christiaan Engels, Elke Gubbelmans, Kurt Van den Broeck, David Beljonne, Jean Luc Bredas, Celest Samyn, Andre Persoons

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

Abstract

We have studied the photorefractive properties of (2,4,7-trinitro-9-fluorenylidene)malononitrile (TNFM) sensitized poly(N-vinylcarbazole)/N-ethylcarbazole polymer composites doped with 2-(3,5,5-trimethylhex-2-ene-1-ylidene)-1,3-propanedinitrile and related dyes. Characterization included four-wave mixing experiments, two-beam coupling and photoconductivity measurements at a wavelength of 780 nm. At an applied field of 53 V/μm, we have observed complete internal diffraction and at 68 V/μm a gain coefficient of 230 cm^-1. Small alterations in the chromophore donor group substituents were used to tune the ionization potential of the dopant dye by 0.3 eV. They affected the grating build-up time, photorefractive phase shift, and complexation with TNFM. This performance is compared to that of three newly synthesized polymethacrylates functionalized with carbazole, a dodecyl chain as an internal plasticizer and three different dyes. Here we observe net two-beam coupling gain and a diffraction efficiency of 60% at 58 V/μm.

Original language	English (US)
Pages (from-to)	130-139
Number of pages	10
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4104
DOIs	https://doi.org/10.1117/12.406477
State	Published - 2000
Externally published	Yes
Event	Organic Photorefractives, Photoreceptors, and Nanocomposites - San Diego, CA, USA Duration: Jul 31 2000 → Aug 1 2000

ASJC Scopus subject areas

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

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10.1117/12.406477

Cite this

Hendrickx, E., Van Steenwinckel, D., Engels, C., Gubbelmans, E., Van den Broeck, K., Beljonne, D., Bredas, J. L., Samyn, C., & Persoons, A. (2000). Photorefractive properties of TNFM-sensitized PVK-based polymer composites and fully functionalized polymethacrylates. Proceedings of SPIE - The International Society for Optical Engineering, 4104, 130-139. https://doi.org/10.1117/12.406477

Photorefractive properties of TNFM-sensitized PVK-based polymer composites and fully functionalized polymethacrylates. / Hendrickx, Eric; Van Steenwinckel, David; Engels, Christiaan et al.
In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4104, 2000, p. 130-139.

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

Hendrickx, E, Van Steenwinckel, D, Engels, C, Gubbelmans, E, Van den Broeck, K, Beljonne, D, Bredas, JL, Samyn, C & Persoons, A 2000, 'Photorefractive properties of TNFM-sensitized PVK-based polymer composites and fully functionalized polymethacrylates', Proceedings of SPIE - The International Society for Optical Engineering, vol. 4104, pp. 130-139. https://doi.org/10.1117/12.406477

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abstract = "We have studied the photorefractive properties of (2,4,7-trinitro-9-fluorenylidene)malononitrile (TNFM) sensitized poly(N-vinylcarbazole)/N-ethylcarbazole polymer composites doped with 2-(3,5,5-trimethylhex-2-ene-1-ylidene)-1,3-propanedinitrile and related dyes. Characterization included four-wave mixing experiments, two-beam coupling and photoconductivity measurements at a wavelength of 780 nm. At an applied field of 53 V/μm, we have observed complete internal diffraction and at 68 V/μm a gain coefficient of 230 cm-1. Small alterations in the chromophore donor group substituents were used to tune the ionization potential of the dopant dye by 0.3 eV. They affected the grating build-up time, photorefractive phase shift, and complexation with TNFM. This performance is compared to that of three newly synthesized polymethacrylates functionalized with carbazole, a dodecyl chain as an internal plasticizer and three different dyes. Here we observe net two-beam coupling gain and a diffraction efficiency of 60% at 58 V/μm.",

author = "Eric Hendrickx and {Van Steenwinckel}, David and Christiaan Engels and Elke Gubbelmans and {Van den Broeck}, Kurt and David Beljonne and Bredas, {Jean Luc} and Celest Samyn and Andre Persoons",

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AU - Hendrickx, Eric

AU - Van Steenwinckel, David

AU - Engels, Christiaan

AU - Gubbelmans, Elke

AU - Van den Broeck, Kurt

AU - Beljonne, David

AU - Bredas, Jean Luc

AU - Samyn, Celest

AU - Persoons, Andre

PY - 2000

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N2 - We have studied the photorefractive properties of (2,4,7-trinitro-9-fluorenylidene)malononitrile (TNFM) sensitized poly(N-vinylcarbazole)/N-ethylcarbazole polymer composites doped with 2-(3,5,5-trimethylhex-2-ene-1-ylidene)-1,3-propanedinitrile and related dyes. Characterization included four-wave mixing experiments, two-beam coupling and photoconductivity measurements at a wavelength of 780 nm. At an applied field of 53 V/μm, we have observed complete internal diffraction and at 68 V/μm a gain coefficient of 230 cm-1. Small alterations in the chromophore donor group substituents were used to tune the ionization potential of the dopant dye by 0.3 eV. They affected the grating build-up time, photorefractive phase shift, and complexation with TNFM. This performance is compared to that of three newly synthesized polymethacrylates functionalized with carbazole, a dodecyl chain as an internal plasticizer and three different dyes. Here we observe net two-beam coupling gain and a diffraction efficiency of 60% at 58 V/μm.

AB - We have studied the photorefractive properties of (2,4,7-trinitro-9-fluorenylidene)malononitrile (TNFM) sensitized poly(N-vinylcarbazole)/N-ethylcarbazole polymer composites doped with 2-(3,5,5-trimethylhex-2-ene-1-ylidene)-1,3-propanedinitrile and related dyes. Characterization included four-wave mixing experiments, two-beam coupling and photoconductivity measurements at a wavelength of 780 nm. At an applied field of 53 V/μm, we have observed complete internal diffraction and at 68 V/μm a gain coefficient of 230 cm-1. Small alterations in the chromophore donor group substituents were used to tune the ionization potential of the dopant dye by 0.3 eV. They affected the grating build-up time, photorefractive phase shift, and complexation with TNFM. This performance is compared to that of three newly synthesized polymethacrylates functionalized with carbazole, a dodecyl chain as an internal plasticizer and three different dyes. Here we observe net two-beam coupling gain and a diffraction efficiency of 60% at 58 V/μm.

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Photorefractive properties of TNFM-sensitized PVK-based polymer composites and fully functionalized polymethacrylates

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