Preparation and characterization of TiO2 hybrid sol for UV-curable high-refractive-index organic–inorganic hybrid thin films

2010 ◽  
Vol 55 (2) ◽  
pp. 199-206 ◽  
Author(s):  
Chao-Ching Chang ◽  
Liao-Ping Cheng ◽  
Feng-Hsi Huang ◽  
Chia-Ying Lin ◽  
Chi-Fa Hsieh ◽  
...  
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
High Refractive Index ◽  
Uv Curable ◽  
Inorganic Hybrid ◽  
Hybrid Thin Films

Photo-induced Optical and Chemical Properties of Polysilane/Inorganic Nano-Hybrids

2004 ◽  
Vol 847 ◽  
Author(s):  
Kimihiro Matsukawa ◽  
Yukihito Matsuura
Keyword(s):  
Thin Films ◽  
Gold Nanoparticles ◽  
Refractive Index ◽  
Sol Gel ◽  
Chemical Properties ◽  
High Refractive Index ◽  
Refractive Index Difference ◽  
Hybrid Thin Films ◽  
Organic Photonics ◽  
And Chemical Properties

ABSTRACTPolysilane/inorganic (silica, titania) nano-hybrids might be attractive materials for organic photonics. Polymethylphenylsilane (PMPS)/silica nano-hybrid thin films were prepared by a sol-gel reaction of PMPS block copolymers with alkoxysilanes. The refractive index of hybrid thin films could be controlled with the composition ratio of PMPS, and the value was changed by UV irradiation accompanying photodecomposition of PMPS. After development of the irradiated hybrid thin films, nano porous (ca. 20nm) silica thin films were generated by removing the decomposed PMPS segments and a high refractive index difference occurred between irradiated and non-irradiated part in the hybrid thin films. Furthermore, under photodecomposition of polysilane copolymers, polysilane functioned as a reducing agent of gold (III) ions to prepare the gold nanoparticles.

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