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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 31 — Nov. 1, 2011
  • pp: G63–G68

Enhanced absorptive characteristics of metal nanoparticle-coated silicon nanowires for solar cell applications

Keya Zhou, Sang-Won Jee, Zhongyi Guo, Shutian Liu, and Jung-Ho Lee  »View Author Affiliations


Applied Optics, Vol. 50, Issue 31, pp. G63-G68 (2011)
http://dx.doi.org/10.1364/AO.50.000G63


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Abstract

The optical properties of metal nanoparticle (NP)-coated silicon nanowires (Si NWs) are theoretically investigated using COMSOL Multiphysics commercial software. A geometrical array of periodic Si NWs coated with metal NPs is proposed. The simulation demonstrates that light absorption could be enhanced significantly in a long wavelength region of the solar spectrum, based upon the localized surface plasmons generated around metal NPs. Various metal NPs, such as Au, Ag, and Al, are all found to increase their light absorption while in contact with Si NWs, in which the Au NPs show the best result in light enhancement. This theoretical work might prove useful in providing a fundamental understanding toward improving further the efficiency of Si wired solar cells.

© 2011 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(350.6050) Other areas of optics : Solar energy

History
Original Manuscript: July 1, 2011
Revised Manuscript: August 22, 2011
Manuscript Accepted: September 11, 2011
Published: October 12, 2011

Citation
Keya Zhou, Sang-Won Jee, Zhongyi Guo, Shutian Liu, and Jung-Ho Lee, "Enhanced absorptive characteristics of metal nanoparticle-coated silicon nanowires for solar cell applications," Appl. Opt. 50, G63-G68 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-31-G63


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