A scientific design and analysis of GaAs thin film cell incorporated with a periodic silver nanoparticles (NPs) structure to reinforce light absorption is presented using the finite element method. The influence of the silver nanoparticles diameter and structure periodicity on light absorption has been examined. it's found that the absorption is significantly enhanced thanks to the surface plasmon induced by the silver nanoparticles. The optimal structural parameters are achieved when the diameter of the nanoparticles is 200 nm and therefore the periodicity is 444 nm. this provides rise to a maximum ultimate photocurrent of 26.32 mA/cm2 under AM1.5G solar irradiation. additionally , the underlying physics that accounts for the enhancement is discussed.
Field absorption by metallic nanoantennas as a way to reinforce light trapping into gallium arsenide cell. It determines the optimum metal nanoantennas distribution for photovoltaic cell applications. The proposed structure takes under consideration the interactions between the nano-particles also as including their interaction with the absorbing substrate. Tapered structure is proposed for absorption enhancement using different metal nanoantennas like gold, silver, copper and aluminium. The sizes of nanoantennas are tapered in one direction. The tapered structures are composed of an array of metal nanoantennas and therefore the sizes are tapered using two alternative ways consistent with the tapering direction. The degree of tapering are often set by controlling a scaling element. All simulation data are obtained using the frequency domain finite element method. Larger than 20% increase within the absorption level are often achieved using the proposed structures.
Surface plasmon resonances in metallic nanoparticles are of considerable importance for skinny film technologies thanks to the many electromagnetic enhancement within the vicinity of metal surface, light trapping and therefore the ability to tune the resonant wavelength by varying the dimensions , geometry and native dielectric environment of the metal nanoparticle. Metal nanoparticles have the power for enhanced light trapping, increased absorption and overall rise in efficiency of GaAs cells. Light enhancement engineered on the vicinity of such particles can augment the absorption within the absorber layer of the GaAs Photovoltaic (PV) cell. during this report, we present calculations of sunshine absorption inside the GaAs (gallium arsenide) absorber layer with embedded metal nanospheres and therefore the subsequent effects instigated by the plasmonic phenomena. The finite element simulation software COMSOL Multiphysics was employed for calculations of sunshine absorption near Au, Ag, Cu and Al nanoparticles and optimization of particle diameters. The results conclude that above 600 nm wavelength where the radiation is absorbed poorly by gallium arsenide, the absorption with the presence of nanoparticles in GaAs solar cell absorber layer are often enhanced .