arezoo firoozi - department of physics, persian gulf university, bushehr ۷۵۱۶۹ iran
ahmad mohammadi - department of physics,persian gulf university bushehr۷۵۱۶۹ ,iran

to enhance light absorption in thin-film crystalline silicon solar cells, we propose a novel structure containing triangular nanogratings both on top and at the bottom of absorbing layer. This combination leads to broadband absorption enhancement due to the excitation of both plasmonic and photonic modes.

thin -film solar cells, absorption enhancement,photonic and placmonic modes,