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The Properties Of Surface Plasmon Resonance In Metal Nanohole Arrays And Potential Applications

Posted on:2015-11-13Degree:DoctorType:Dissertation
Country:ChinaCandidate:L YuanFull Text:PDF
GTID:1221330452965490Subject:Materials science
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Surface plasmon resonance is a charge-density oscillation that may exist at the interfacebetween a metal and a dielectric. The properties of surface plasmon resonance are affected bymany factors, such as the spatial structure of the metal. The surface plasma resonancepropagating at the interface between a semi-infinite dielectric and metal is called surfaceplasmon polarization (SPP), while the surface plasma resonance supported by metal particlesis called localized surface plasmon resonance (LSPR). In the metal films perforated with holearrays, there are surface plasmon polarization (SPP) and localized surface plasmon resonance(LSPR) simultaneously, and the phenomenon of extraordinary optical transmission(EOT) is observed in it. However, at present the origin of the phenomenon of extraordinaryoptical transmission (EOT) is not fully understood as the properties of surface plasmonresonance in the metal hole arrays are intricate, and the properties of surface plasmonresonance in the metal hole arrays are not fully understood. At the same time metal holearrays present many potential applications such as in the biosensors, and exploring thepotential applications of metal hole arrays is a research direction. In this paper, the propertiesof surface plasmon resonance in the silver films perforated with nanohole arrays areinvestigated using the finite-difference time-domain technique (FDTD), and we focuses onthe investigation of the properties of surface plasmon resonance in the monolayer andbilayer silver rectangular nanohole arrays and the potential applications based on them. It isone of the main research directions to further improve the conversion efficiency of solarenergy based on surface plasmon resonance supported by metallic nanostructures in the solarcells. In this paper, the potential applications of localized surface plasmon resonance (LSPR)supported by metal particles in the filed of dye sensitized solar cells (DSSC) are studied usingthe finite-difference time-domain (FDTD) technique.The main contents of this paper are as follows:(1) Several methods in numericalcalculation of electromagnetic field are introduced, while the finite-difference time-domain(FDTD) technique which is applied to our numerical calculation is given more attention.(2)The basic properties of surface plasmon polarization (SPP) and localized surface plasmonsresonance (LSPR) are introduced, and the histories of research on surface plasmon resonanceare reviewed. The histories of research on metal hole arrays are reviewed, include thephenomenon of extraordinary optical transmission (EOT), the origin of the phenomenon andthe potential applications based on the phenomenon. The potential applications of surfaceplasmon resonance are introduced, the history of research on metamaterials and the properties of metamaterials are given more attention.(3) The optical properties of the silver filmsperforated with nanohole arrays are investigated using the finite-difference time-domain(FDTD) technique, and we focuses on the investigation of the properties of surface plasmonresonance in the monolayer and bilayer silver rectangular nanohole arrays and the potentialapplications based on them.(4) Based on the coupling properties between top and downsurface plasmon polaritons (SPP) in metal film perforated with rectangular nanohole arrays,the possibility of exploiting thick metal rectangular nanohole arrays as plasmonic sensors isstudied using the finite-difference time-domain (FDTD) technique.(5) Based on theproperties of surface plasmon resonance in metal film perforated with rectangular nanoholearrays, the possibility of exploiting thick metal rectangular nanohole arrays as opticalmagnetic metamaterials is studied using the finite-difference time-domain (FDTD) technique,while the origin of the magnetic property in thick metal film perforated with rectangularnanohole arrays is revealed by the investigation of electrical current density distribution in themetal film.(6) A low-loss magnetic metamaterial with double-fishnet structures of silver andgold operating at near-infrared wavelength are designed using the finite difference timedomain (FDTD) technique, particle swarm optimization algorithm was employed to optimizethe geometry dimensions of Ag-dielectric-Au unit cell. Based on the the properties of surfaceplasmon resonance in bilayer metal films perforated with rectangular nanohole arrays, therelated physical mechanism are investigated by the investigation of electric field and surfacecharge distribution in the fishnet structures.(7) The parasitic absorption effect and enhancedeffect of metal nanoparticles in the Dye sensitized solar cells (DSSC) are revealed by usingthe finite difference time domain technique(FDTD).
Keywords/Search Tags:surface plasmon polarization, localized surface plasmon resonance, couplingeffect, optical magnetic metamaterials, solar cells
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