Design of plasmonic back structures for efficiency enhancement of thin-film amorphous Si solar cells
Optics Letters, Vol. 34, Issue 23, pp. 3725-3727 (2009)
http://dx.doi.org/10.1364/OL.34.003725
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Abstract
Metallic back structures with one-dimensional periodic nanoridges attached to a thin-film amorphous Si (a-Si) solar cell are numerically studied. At the interfaces between a-Si and metal materials, the excitation of surface-plasmon polaritons leads to obvious absorption enhancements in a wide near-IR range for different ridge shapes and periods. The highest enhancement factor of the cell external quantum efficiency is estimated to be 3.32. The optimized structure can achieve an increase of 17.12% in the cell efficiency.
© 2009 Optical Society of America
OCIS Codes
(040.5350) Detectors : Photovoltaic
(240.6680) Optics at surfaces : Surface plasmons
(260.2110) Physical optics : Electromagnetic optics
(310.6628) Thin films : Subwavelength structures, nanostructures
ToC Category:
Detectors
History
Original Manuscript: May 11, 2009
Revised Manuscript: October 22, 2009
Manuscript Accepted: October 24, 2009
Published: November 30, 2009
Citation
Wenli Bai, Qiaoqiang Gan, Filbert Bartoli, Jing Zhang, Likang Cai, Yidong Huang, and Guofeng Song, "Design of plasmonic back structures for efficiency enhancement of thin-film amorphous Si solar cells," Opt. Lett. 34, 3725-3727 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-23-3725
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