Some Properties of TiO2/Au Nanocomposite Thin Films Produced by Spincoating Method for Application in Plasmonic Solar Cells
The TiO2/Au nanocomposite thin films play a very important role in the plasmonic solar
cell. In such as composite systems, the localized surface plasmon resonance (LSPR) of embedded
metal nanoparticles determines the light absorptionenhancement of the semiconductive part
(TiO2); hence, enhances the efficiency of the plasmatic solar cell. The characterizations of the
TiO2
/Au nanocomposite thin films – such as light absorption, scattering and LSPR capacities -
depend on many parameters: sizes, weight ratio of metal nanoparticles, thickness of the thin film
layers and the arrangements of TiO2/Au composite in integrated-matrix system. In this work, we
outline the preparation method of the TiO
2/Au nanocomposite thin films, then we investigate the
effect of technological conditions – such as TiO
2/Au mixture solution concentration, TiO2/Au
weight ratio and number of spin-coating layers – tothe surface morphology of the nanocomposite
to find out the optimum fabrication conditions. Some experimental results of thin film such as
structural property (X ray diffraction, thin film morforlogy…) and optical property (absorption
coefficience concerning LSPR…) will also be shown and discussed