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Abstract
The CTAB-templated Fe2O3-SiO2 nano-composite films with different concentrations of cetyltrimethylammonium bromide (CTAB) were prepared by sol-gel method using TEOS and Fe (NO3)3·9H2O as precursors, and surfactant CTAB is used as a template. Raman spectra indicated the α phase of the Fe2O3 exist in the composites films. The transparency of the CTAB-templated Fe2O3-SiO2 nano-composite films is related to the content of CTAB, the number of layers. The all CTAB-templated Fe2O3-SiO2 nano-composite films are optically transparent in the 500–2100 nm range in the condition of the experiment. A red shift of the absorption edge of the CTAB-templated Fe2O3-SiO2 nano-composite films is observed with concentrations of Fe2O3 increased.
5. Acknowledgments
This research is financially supported by Innovative Program of Shanghai Municipal Education Commission (08YZ97) and the Innovation Fund Project For Graduate Student of Shanghai (JWCXSL1002).