Article ID Journal Published Year Pages File Type
1538980 Optics Communications 2007 5 Pages PDF
Abstract

A series of chromophore-bonded inorganic–organic hybrid films were successfully prepared via a sol–gel process using the alkoxysilane dye (ICTES-DR1), anilinomethyltriethoxysilane (AMTES) and tetraethoxysilane (TEOS) as precursors. Second-order NLO properties and their thermal stability of the hybrid films were investigated by in situ second harmonic generation (SHG) measurement. The poled films exhibit large second harmonic coefficient (d33) in the range of 32–41 pm/V at 1064 nm. The aniline group of the AMTES was found to be effective for improving the thermal stability of optical nonlinearity due to the formation of hydrogen bonds between the carbonyl and aniline group, which was confirmed by virtue of FTIR and UV–visible spectra.

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Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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