Plasmonic backcontact grating for P3HT:PCBM organic solar cells enabling strong optical absorption increased in all polarizations
Okyay, A., K.
Demir, H. V.
Optical Society of American (OSA)
14200 - 14209
MetadataShow full item record
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/21855
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 ~21% considering both polarizations under AM1.5G solar radiation and over a half-maximum incidence angle of 45° (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. © 2011 Optical Society of America.