Titania/Ormosils Organic-Inorganic Hybrid Thin Films Doped with Azobenzene Small Molecules for Optical Switch Applications

Wen Xiu Que; M. Sun; C.Y. Jia; L. Cheng; Zhuo  Sun; L.L. Wang; X. Hu

doi:10.4028/www.scientific.net/AMR.31.11

Paper Titles

Charge Effect in Organic Field-Effect Transistors - Analyzing Hall Measurements in the Accumulation Layer
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Surface Optical Waves in Semi-Infinite One-Dimensional Photonic Crystals Containing Alternating Layers of Positive and Negative Media
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Titania/Ormosils Organic-Inorganic Hybrid Thin Films Doped with Azobenzene Small Molecules for Optical Switch Applications
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Sol-Gel Fabrication of Low Temperature Organic-Inorganic Hybrid Film Patterns for Photonic Applications
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Morphology and Crystal Quality of InAs QDs Grown by MOVPE Using Different Growth Modes
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Modulation of Three Dimensional Photonic Band Gap in Visible Region
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Raman Scattering from GaAs Nanowires Grown by Molecular Beam Epitaxy
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 31Titania/Ormosils Organic-Inorganic Hybrid Thin...

Titania/Ormosils Organic-Inorganic Hybrid Thin Films Doped with Azobenzene Small Molecules for Optical Switch Applications

Abstract:

Titania/organically modified silanes (ormosils) organic-inorganic hybrid thin films doped with azobenzene small molecules are prepared by a low temperature sol-gel spin-coating process for optical switch applications. Acid-catalyzed solutions of γ-glycidoxypropyltrimethoxysilane and methyltrimethoxysilane mixed with tetrapropyl orthotitanate are used as matrix precursors. Atomic force microscopy is used to study the morphological properties of the hybrid thin films. Results indicate that crack-free thin films with a thickness of about 1.3μm can be obtained by a single spin-coating process after a low heat treatment temperature. The propagation mode properties of the hybrid thin films are also studied by employing a prism coupling technique. The photo-responsive properties of the hybrid films baked at different temperatures are induced by an irradiation with UV light and subsequent visible light.