Study On The Optical Absorption Efficiency Of Silver Nanoparticles Reinforced Silicon Films By Light Incidence Angle

The development of energy technology is an important part of promoting human progress in science and technology,along with the progress of science and technology,the traditional energy has been unable to meet the development of human history,human never stop to explore the new energy technology.Solar energy,as a kind of environmental protection and renewable energy sources,has been the focus of scientific research workers from its birth.This paper focused on the thin film solar silicon substrate,which was enhanced by silver nanoparticles,mainly discussed the influence of light incidence angle and other conditions on the structure light absorption efficiency.The main contents of this thesis are as follows:Firstly,the theoretical analysis of the effect of the metal nanoparticles’ plasma resonance effect and the influencing factors were carried out.The mechanism of surface and local plasma resonance on the structure light absorption enhancement was emphasized in this paper,which provided a theoretical support for the following simulation analysis.FDTD Solution is finite time domain finite difference method to simulate and analyze the problems.First of all,the influence of different silver nanoparticles on the plasma resonance and extinction properties was calculated.Secondly,the light absorption efficiency of silver nanoparticles with different particle size was simulated and analyzed.The two parts determined the best parameters of silver nanoparticles model,to prepare for subsequent research on the incident angle of light absorption effect on the structure condition.Finally,the silver nanoparticles has enhanced the optical absorption of silicon based thin films under different polarization,the influence of oblique incidence on the absorption rate of the current structure was analyzed and the theoretical analysis was carried out.