The Effect of Ag Spherical Nanostructured Array on Light Absorption Enhancement in Thin-film Si Solar Cells
Paper ID : 1237-ICNS
Authors:
Afshin Sadeghi *, Nafiseh Sharifi
Department of Physics, Kashan University, Kashan, Iran
Abstract:
In this paper, Ag spherical nanostructured array was incorporated in the active layer of a typical thin-film Si solar cell to investigate the plasmonic effect of Ag array on the absorbed light power of a thin-film Si solar cell. The finite difference time domain (FDTD) method at the wavelengths of 400 to 1100 nm was utilized. Properties such as radius and center to center distance between two adjacent Ag nanoparticles, as well as the position of the nanostructured array in the active layer have an important role in enhancement of the abserbed light. An array of Ag with the radius of 70 nm and center to center distance of 160 nm has the maximum enhancement in absorbed light due to the near field of the Ag nanoparticles. The absorption of light within the substrate is further enhanced by the resonance from the periodic arrays at intermediate and higher wavelengths. The maximum light absorption enhancement occurred at the wavelength between 900 and 1100 nm.
Keywords:
optical power enhancement, plasmonic, Si solar cell, Ag nanoparticles, surface plasmon
Status : Abstract Accepted (Poster Presentation)