Plasmonic backcontact grating for P3HT:PCBM organic solar cells enabling strong optical absorption increased in all polarizations
Sefunc, M. A.
Okyay, A. K.
Demir, H. V.
Optical Society of America
Sefunc, M. A., Okyay, A. K., & Demir, H. V. (2011). Plasmonic backcontact grating for P3HT: PCBM organic solar cells enabling strong optical absorption increased in all polarizations. Optics express, 19(15), 14200-14209.
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/12095
In P3HT:PCBM based organic solar cells we propose and demonstrate numerically plasmonic backcontact grating architectures for strong optical absorption enhanced in both transverse-magnetic and transverse-electric polarizations. Even when the active material is partially replaced by the metallic grating (without increasing the active layer film thickness), we show computationally that the light absorption in thin-film P3HT:PCBM is increased by a maximum factor of similar to 21% considering both polarizations under AM1.5G solar radiation and over a half-maximum incidence angle of 45 degrees (where the enhancement drops to its half) compared to the same cell without a grating. This backcontact grating outperforms the typical plasmonic grating placed in PEDOT:PSS layer. (C)2011 Optical Society of America.