Sol-gel process of non-linear optical silica films with organic chromophore as side chain

Sung, Po‐Hou; Wu, Shao-Ling; Lin, Chien-Yang

doi:10.1007/bf01152959

Cited by 13 publications

(5 citation statements)

References 14 publications

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“…Efforts to increase the thermal stability entail selecting high glass transition temperature matrixes (e.g., those with cross-linking), , main-chain chromophores, or high glass transition polymers . From the current literature, it appears that polyimide and transparent films containing NLO chromophores prepared by a sol−gel process are the two most potential candidates which may retain largest temporal behaviors. − …”

Section: Introductionmentioning

confidence: 99%

Novel Thermally Stable Cross-Linked Nonlinear Optical Silica Films Prepared by a Sol−Gel Process

Sung¹,

Hsu²,

Ding³

et al. 1998

Chem. Mater.

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To improve the orientational stability of the chromophore induced by an electric field in a second-order nonlinear optical polymer, we have synthesized a thermally stable and cross-linkable azo dye, 4-[(4‘‘-aminophenyl)sulfonyl]-4‘-[N,N-bis(2-hydroxyethyl)amino]azobenzene. The transparent films with silica as matrix and organic chromophore as cross-linking agent were then prepared by using a sol−gel process. The resulting films heated at 200 °C under a high-corona field exhibited the nonlinear optical coefficient d 33 = 32 pm/V in Maker-fringe measurement. Long-term stability of second-harmonic coefficients in these films was observed even at 160 °C.

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Section: Introductionmentioning

confidence: 99%

Novel Thermally Stable Cross-Linked Nonlinear Optical Silica Films Prepared by a Sol−Gel Process

Sung¹,

Hsu²,

Ding³

et al. 1998

Chem. Mater.

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“…The latter was copolymerized with tetra-ethoxysilane and the resulting sol was used to spin-coat thin films (λ max ) 472 nm) which were thermally cured and upon poling gave a d 33 value of 46 pm/V at the fundamental wavelength of 1.06 µm. 23 They also observed high thermal stability of the poled thin films.…”

Section: Class Ii: Side-chain-tethered Inorganic-organic Hybrid Mater...mentioning

confidence: 94%

“…Sung et al covalently attached DR1 to toluylene-2,4-diisocyanate which upon reaction with γ-(aminopropyl)triethoxysilane yielded the chromophore-bound silane precursor. The latter was copolymerized with tetraethoxysilane and the resulting sol was used to spin-coat thin films (λ max = 472 nm) which were thermally cured and upon poling gave a d 33 value of 46 pm/V at the fundamental wavelength of 1.06 μm . They also observed high thermal stability of the poled thin films.…”

Section: Class Ii: Side-chain-tethered Inorganic−organic Hybrid Mate...mentioning

confidence: 99%

Sol−Gel Materials for Second-Order Nonlinear Optics

2001

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Sol−gel processing of new materials for second-order nonlinear optics promises to be a simple and highly versatile synthetic route among those that have been evaluated to achieve large and stable second-harmonic generation. Introduction to various types of organic chromophore−inorganic matrix hybrid materials that have been fabricated via sol−gel methodology and a survey of the recent efforts in optimizing their nonlinear optical efficiencies are presented. It is incurred that main-chain chromophore-embedded processable hybrids with high glass transition temperatures and thermal stabilites offer great potential in the quest for building a device based on second-order nonlinear optical efficiency of synthetic materials.

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“…The silylation of the different side chains in these molecules by reaction with IPTES or GPTMS is also illustrated in Fig. 1 and was performed in accordance with procedures given in the literature [8][9] or developed as described elsewhere [101. The dyes were incorporated into GPTMS/ASB or GPTES/ASB (79:20, 1 mole-% dye).…”

Section: Methodsmentioning

confidence: 99%

Organic Dye-Doped Hybrid Sol-Gel Coatings and Pigments – Synthesis, Structural Elucidation and Application

1998

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The chemistry of sol-gel processing of dye-doped, hybrid coatings for glass surfaces has been studied via FT-Raman-, NIR-and NMR-spectroscopy both in the liquid and solid state. Based on these results further investigations are presented aiming at the development of new hybrid pigments by spray drying of two-component sols. The properties of the resulting powders are discussed with respect to their morphology, migration behaviour and photostability.

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Sol-gel process of non-linear optical silica films with organic chromophore as side chain

Cited by 13 publications

References 14 publications

Novel Thermally Stable Cross-Linked Nonlinear Optical Silica Films Prepared by a Sol−Gel Process

Novel Thermally Stable Cross-Linked Nonlinear Optical Silica Films Prepared by a Sol−Gel Process

Sol−Gel Materials for Second-Order Nonlinear Optics

Organic Dye-Doped Hybrid Sol-Gel Coatings and Pigments – Synthesis, Structural Elucidation and Application

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