Volumetric plasmonic resonator architecture for thin-film solar cells
Author
Sefunc, M.A.
Okyay, Ali Kemal
Demir, Hilmi Volkan
Date
2011-03-04Source Title
Applied Physics Letters
Print ISSN
0003-6951
Publisher
AIP Publishing
Volume
98
Issue
9
Pages
093117-1 - 093117-3
Language
English
Type
ArticleItem Usage Stats
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Abstract
We 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.
Keywords
Absorbing materialsActive layer
Air mass
Computational results
Design concept
Field localization
Global illumination
Grating layers
Off-axis angles
Optical absorption
Organic solar cell
Plasmonic
Proof of concept
Thin-film solar cells
Absorption
Light absorption
Resonators
Silver
Solar cells
Plasmons