Sefunc, M.A.Okyay, Ali KemalDemir, Hilmi Volkan2016-02-082016-02-082011-03-040003-6951http://hdl.handle.net/11693/22017We propose and demonstrate a design concept of volumetric plasmonic resonators that relies on the idea of incorporating coupled layers of plasmonic structures embedded into a solar cell in enhanced optical absorption for surface-normal and off-axis angle configurations, beyond the enhancement limit of individual plasmonic layers. For a proof-of-concept demonstration in a thin-film organic solar cell that uses absorbing materials of copper phthalocyanine/perylene tetracarboxylic bisbenzimidazole, we couple two silver grating layers such that the field localization is further extended within the volume of active layers. Our computational results show a maximum optical absorption enhancement level of ∼67% under air mass 1.5 global illumination considering both polarizations.EnglishAbsorbing materialsActive layerAir massComputational resultsDesign conceptField localizationGlobal illuminationGrating layersOff-axis anglesOptical absorptionOrganic solar cellPlasmonicProof of conceptThin-film solar cellsAbsorptionLight absorptionResonatorsSilverSolar cellsPlasmonsArticle10.1063/1.3560446