Fabrication of polysilane–titania hybrid thin films

Preparation of Porous Titania Thin Films from Polysilane-Titania Hybrid by UV Irradiation.

“…This fact has also been confirmed by the results of GC-MS equipped with evolved gas analysis [13]. Fig.3 shows UV-Vis absorption and fluorescence spectra of P(MPS-co-MPTES) film (Fig.3 (a)), polysilane-titania hybrid thin films (Fig.3 (b) and (c)), and titania film (Fig.3 (d)).…”

“…The sol-gel reaction of P(MPS-co-MPTES) with Ti(OC2H5)4 modified with acac has been reported in our previous report [13].…”

“…The polysilane-titania hybrids consisted of covalent bond between polysilane block and titania matrix through Si-O-Ti, which was confirmed by absorption peak around 920 cm 1 [13]. The shift of ester-carbonyl absorption from 1728 cm' to 1725 cm'' suggests the existence of hydrogen bond with Ti-OH.…”

“…It has also been found that the polysilane-titania hybrid thin films prepared by the similar manner gave numerous unevenness around 10 -20 nm at a few hundred nm intervals, which mainly consisted of porous titania component, after photolysis of the polysilane segments by UV irradiation [13].…”

Preparation of Polysilane/Gold Bilayer Using Polysilane/2-(Methylthio)ethyl Methacrylate Block Copolymer

“…3,4 In order to improve some functionalities of polysilanes, we have prepared various polysilane-inorganic hybrid thin films in which polysilane segments are embedded in inorganic matrix such as silica, titania, and zirconia. [5][6][7][8][9][10] Chujo has suggested that some chemical bonds or interactions between the organic and inorganic components are necessary to prepare homogeneous organic-inorganic hybrids. [11][12][13][14][15] In our previous work, chemical bonds between polysilane-acrylic or -methacrylic block copolymers and inorganic components via sol-gel reaction are used for preparation of homogeneous polysilane-silica or -titania hybrid thin films.…”