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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 20, Iss. S5 — Sep. 10, 2012
  • pp: A777–A787

The tradeoff between plasmonic enhancement and optical loss in silicon nanowire solar cells integrated in a metal back reflector

Keya Zhou, Zhongyi Guo, Xiaopeng Li, Jin-Young Jung, Sang-Won Jee, Kwang-Tae Park, Han-Don Um, Ning Wang, and Jung-Ho Lee  »View Author Affiliations


Optics Express, Vol. 20, Issue S5, pp. A777-A787 (2012)
http://dx.doi.org/10.1364/OE.20.00A777


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Abstract

We perform a systematic numerical study to characterize the tradeoff between the plasmonic enhancement and optical loss in periodically aligned, silicon nanowire (SiNW) arrays integrated with a silver back reflector (Ag BR). Optimizing the embedded depth of the wire bottoms into a silver reflector achieved a highly efficient SiNW solar cell. Compared to the SiNW solar cell employing a flat back reflector, the embedded depth of ~20 nm resulted in the relative increase of ~5% in ultimate solar cell efficiency.

© 2012 OSA

OCIS Codes
(350.6050) Other areas of optics : Solar energy
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Photovoltaics

History
Original Manuscript: July 20, 2012
Revised Manuscript: August 30, 2012
Manuscript Accepted: August 30, 2012
Published: September 7, 2012

Citation
Keya Zhou, Zhongyi Guo, Xiaopeng Li, Jin-Young Jung, Sang-Won Jee, Kwang-Tae Park, Han-Don Um, Ning Wang, and Jung-Ho Lee, "The tradeoff between plasmonic enhancement and optical loss in silicon nanowire solar cells integrated in a metal back reflector," Opt. Express 20, A777-A787 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-S5-A777


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