Editors : Y. Lu, J.M. Merrill, M.T. Lusk, S. Bailey, A. Franceschetti
a1 Delft University of Technology – PVMD/DIMES, P.O. Box 5053, 2628 CD Delft, Netherlands
a2 Delft University of Technology – IRCTR, P.O. Box 5031, 2600 GA Delft, Netherlands
Design of one-dimensional periodic gratings is investigated for enhancing the light absorption in thin-film silicon solar cells due to scattering at rough interfaces that are introduced into solar cells by the gratings. A rigorous full-wave analysis is carried out in order to determine the optical properties of amorphous and microcrystalline silicon solar cells in PIN and NIP configurations, respectively. Optimal geometrical parameters of 1-D gratings for maximizing photocurrent density in thin-film silicon solar cells are determined.