19 August 1996 Corona-poled azo-dye-doped silica films obtained by sol-gel processing
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SiO2 films doped with the organic dye DO3, exhibiting high electron delocalization have been prepared by the sol- gel method and deposited on soda-lime glass substrates. On these films an electric field of 5-7 kV/cm has been successively applied in order to induce orientation of the DO3 molecules and freeze them in the condition by heating and reticulation of the inorganic matrix. The thermal stability of the films and the variation of the molecules' orientation as a function of time have been studied. The films have been characterized by means of differential thermal analysis, thermogravimetry, mass spectrometry, ellipsometry and atomic force microscopy.
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Angelo Montenero, Angelo Montenero, Guglielmina Gnappi, Guglielmina Gnappi, Michele Valla, Michele Valla, Mario Bertolotti, Mario Bertolotti, Francesco Michelotti, Francesco Michelotti, Concita Sibilia, Concita Sibilia, "Corona-poled azo-dye-doped silica films obtained by sol-gel processing", Proc. SPIE 2775, Specification, Production, and Testing of Optical Components and Systems, (19 August 1996); doi: 10.1117/12.246796; https://doi.org/10.1117/12.246796

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