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Optimal design of ultra-broadband, omnidirectional, and polarization-insensitive amorphous silicon solar cells with a core-shell nanograting structure
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0002-3401-1125
2013 (English)In: Progress in Photovoltaics, ISSN 1062-7995, E-ISSN 1099-159X, Vol. 21, no 5, 1077-1086 p.Article in journal (Refereed) Published
Abstract [en]

We systematically investigated the optical behaviors of an amorphous silicon solar cell with a core-shell nanograting structure. The horizontally propagating Bloch waves and Surface Plasmon Polariton waves lead to significant absorption enhancements and consequently short-circuit current enhancements of this structure, compared with the conventional planar one. The perpendicular carrier collection makes this structure optically thick and electronically thin. An optimal design is achieved through full-field numerical simulation, and a physical explanation is given. Our numerical results show that this configuration has ultra-broadband, omnidirectional, and polarization-insensitive responses and has a great potential in photovoltaics.

Place, publisher, year, edition, pages
2013. Vol. 21, no 5, 1077-1086 p.
Keyword [en]
solar cells, plasmonics, absorption, short-circuit current density, core-shell nanograting
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-127496DOI: 10.1002/pip.2206ISI: 000322012700026ScopusID: 2-s2.0-84881254308OAI: diva2:644805

QC 20130902

Available from: 2013-09-02 Created: 2013-08-30 Last updated: 2013-11-19Bibliographically approved

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He, Sailing
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