Abstract：
:With the objective to conceive a plasmonic solar cell with enhanced photocurrent, we investigate the role of plasmonic nanoshells, embedded within a ultrathin microcrystalline silicon solar cell, in enhancing broadband light trapping capability of the cell and, at the same time, to reduce the parasitic loss. The thickness of the considered microcrystalline silicon (μc-Si) layer is only ~1/6 of conventional μc-Si based solar cells while the plasmonic nanoshells are formed by a combination of silica and gold, respectively core and shell. We analyze the cell optical response by varying both the geometrical and optical parameters of the overall device. In particular, the nanoshells core radius and metal thickness, the periodicity, the incident angle of the solar radiation and its wavelength are varied in the widest meaningful ranges. We further explain the reason for the absorption enhancement by calculating the electric field distribution associated to resonances of the device. We argue that both Fabry-Pérot-like and localized plasmon modes play an important role in this regard.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Raja W,Bozzola A,Zilio P,Miele E,Panaro S,Wang H,Toma A,Alabastri A,De Angelis F,Zaccaria RPdoi
10.1038/srep24539subject
Has Abstractpub_date
2016-04-15 00:00:00pages
24539issn
2045-2322pii
srep24539journal_volume
6pub_type
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pub_type： 已发布勘误
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