tThin-film silicon solar cells need light trapping mechanisms to enhance the efficiency dueto silicon’s weak absorption of light. In this paper, by use of rigorous coupled-wave analysis(RCWA), we propose and simulate a light-trapping quasi-photonic crystal plasmonic thin-film silicon solar cell consisting of an anti-reflection coating (ARC) with refractive indexnAR= 1.9 and thickness (TAR= 0.06 m), a silicon active layer with thickness Tc= 0.45 m,a grating surfaces composed of silver and a one-dimensional quasi-photonic crystal com-posed of SiO2/Si layers. Results show that for proposed structure the cell efficiency arriveto 14.3% for TM with p = 0.181 m and 11.71% for TE mode with p = 0.42 m which has asignificant increase compare usual and similar thin-film silicon solar cells.© 2016 Elsevier GmbH. All rights reserved.

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