Stability of second-order nonlinear optical properties in sol-gel matrix bearing silylated chalcone and disperse red 1

Dong Hoon Choi; Ji Hye Park; Ju Hyun Lee; Sin Doo Lee

doi:10.1016/S0040-6090(99)00871-8

Stability of second-order nonlinear optical properties in sol-gel matrix bearing silylated chalcone and disperse red 1

Dong Hoon Choi, Ji Hye Park, Ju Hyun Lee, Sin Doo Lee

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

We report the syntheses of two triethoxysilanes for thin film fabrication. One silane (SGDR 1) contains disperse red 1 (DR 1) which is a second-order nonlinear optical (NLO) active chromophore. The other silane (SGCHC) bears a chalcone derivative. In order to improve the poor temporal stability of second-order NLO effects in the resulting poled sol-gel film, photo-crosslink was induced between the double bonds in chalcone units after mixing SGDR 1 and SGCHC. Under UV exposure, the photocrosslink was studied with UV-visible absorption and IR vibrational spectroscopy. The decaying behavior of the molecular order parameter (A₂) after corona poling was investigated using polarized absorption spectroscopy (PAS). Second-order non-linear optical properties of the sample were studied using second-harmonic generation (SHG) and linear electro-optic (E/O) signal measurement. Poled and UV-cured film of SGDR 1/SGCHC exhibited much better stability than thermally poled sample with respect to the molecular order parameter and linear electro-optic effect.

Original language	English
Pages (from-to)	213-221
Number of pages	9
Journal	Thin Solid Films
Volume	360
Issue number	1-2
DOIs	https://doi.org/10.1016/S0040-6090(99)00871-8
Publication status	Published - 2000 Feb 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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title = "Stability of second-order nonlinear optical properties in sol-gel matrix bearing silylated chalcone and disperse red 1",

abstract = "We report the syntheses of two triethoxysilanes for thin film fabrication. One silane (SGDR 1) contains disperse red 1 (DR 1) which is a second-order nonlinear optical (NLO) active chromophore. The other silane (SGCHC) bears a chalcone derivative. In order to improve the poor temporal stability of second-order NLO effects in the resulting poled sol-gel film, photo-crosslink was induced between the double bonds in chalcone units after mixing SGDR 1 and SGCHC. Under UV exposure, the photocrosslink was studied with UV-visible absorption and IR vibrational spectroscopy. The decaying behavior of the molecular order parameter (A2) after corona poling was investigated using polarized absorption spectroscopy (PAS). Second-order non-linear optical properties of the sample were studied using second-harmonic generation (SHG) and linear electro-optic (E/O) signal measurement. Poled and UV-cured film of SGDR 1/SGCHC exhibited much better stability than thermally poled sample with respect to the molecular order parameter and linear electro-optic effect.",

author = "Choi, {Dong Hoon} and Park, {Ji Hye} and Lee, {Ju Hyun} and Lee, {Sin Doo}",

note = "Funding Information: This study was supported by the academic research fund of Ministry of Education, Republic of Korea (1997–1998).",

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AU - Park, Ji Hye

AU - Lee, Ju Hyun

AU - Lee, Sin Doo

N1 - Funding Information: This study was supported by the academic research fund of Ministry of Education, Republic of Korea (1997–1998).

PY - 2000/2/1

Y1 - 2000/2/1

N2 - We report the syntheses of two triethoxysilanes for thin film fabrication. One silane (SGDR 1) contains disperse red 1 (DR 1) which is a second-order nonlinear optical (NLO) active chromophore. The other silane (SGCHC) bears a chalcone derivative. In order to improve the poor temporal stability of second-order NLO effects in the resulting poled sol-gel film, photo-crosslink was induced between the double bonds in chalcone units after mixing SGDR 1 and SGCHC. Under UV exposure, the photocrosslink was studied with UV-visible absorption and IR vibrational spectroscopy. The decaying behavior of the molecular order parameter (A2) after corona poling was investigated using polarized absorption spectroscopy (PAS). Second-order non-linear optical properties of the sample were studied using second-harmonic generation (SHG) and linear electro-optic (E/O) signal measurement. Poled and UV-cured film of SGDR 1/SGCHC exhibited much better stability than thermally poled sample with respect to the molecular order parameter and linear electro-optic effect.

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