| Surface plasmon polaritons (SPPs) are waves that propagate along the interface between metal and dielectric material due to the interaction between the. free electrons of the conductor and electromagnetic field, which have attracted great attention due to their outstanding performance in manipulating light on the nanoscale. It shows great potential in many frontier research directions and now it gets more discussion by expanding into the photovoltaic field. There are design methods based on plasmonics can be used to improve the absorption in photovoltaic devices, permitting a considerable reduction in the physical thickness of solar photovoltaic absorber layers, and yielding new opportunities for solar-cell design. Besides, its property of overcoming the classical diffraction limit of light in conventional optics can be the fundamental of new optical devices, such as optical wave guide, filter and so on, in all-optical-communication field.In this thesis, firstly, the development and application of surface plasmon is discussed and the situation of photovoltaic industry is introduced both globally and domestically. By introducing the bottleneck problem in the solar cell, the SPPs prove the potential to become the solution. It has a promising value for the photovoltaic industry’s future. Secondly, it is the basic theory of SPPs and the three main methods for its excitation. Thirdly, several photovoltaic cell are discussed specifically, and electrical properties of the solar cell are discussed with curves and equations. In the fourth part, it is the simulation and computation for the certain structure, which shows the localized surface resonance of the holes array. By analyzing the data, the relation between the transmission of the light and the parameters of the structure is discussed. In the last part, by studying the phenomenon of the resonance peak red-shifting with the variation of radius of the hole, we found a method of designing a high resolution plasmonic demuiltiplexor. |
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