Design of nano-pattern reflectors for thin-film solar cells based on three-dimensional optical and electrical modeling
Journal
Proceedings of SPIE - The International Society for Optical Engineering
Journal Volume
9358
Date Issued
2015
Author(s)
Abstract
The optical and electrical properties of a photonic-plasmonic nanostructure on the back contact of thin-film solar cells were investigated numerically through the three-dimensional (3D) finite-difference time-domain method and the 3D Poisson and drift-diffusion solver. The focusing effect and the Fabry-Perot resonances are identified as the main mechanisms for the enhancement of the optical generation rate as well as the short circuit current density. However, the surface topography of certain nanopattern structures is found to reduce the internal electrostatic field of the device, thus limiting charge collection. The optimized conditions for both optics and electronics have been analyzed in this paper. © 2015 SPIE.
Subjects
amorphous silicon; nanostructure; Thin-film solar cells
SDGs
Other Subjects
Amorphous films; Amorphous silicon; Fabry-Perot interferometers; Nanostructures; Photonic devices; Solar cells; Surface topography; Thin films; Time domain analysis; Electrical modeling; Fabry-Perot resonances; Optical and electrical properties; Optical generation; Optimized conditions; Plasmonic nanostructures; Thin film solar cells; Threedimensional (3-d); Finite difference time domain method
Type
conference paper