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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 19, Iss. S1 — Jan. 3, 2011
  • pp: A41–A50

Optical properties of Si microwires combined with nanoneedles for flexible thin film photovoltaics

Kwang-Tae Park, Zhongyi Guo, Han-Don Um, Jin-Young Jung, Jun Mo Yang, Sung Kyu Lim, Young Su Kim, and Jung-Ho Lee  »View Author Affiliations


Optics Express, Vol. 19, Issue S1, pp. A41-A50 (2011)
http://dx.doi.org/10.1364/OE.19.000A41


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Abstract

A combined wire structure, made up of longer periodic Si microwires and short nanoneedles, was prepared to enhance light absorption using one-step plasma etching via lithographical patterning. The combined wire array exhibited light absorption of up to ~97.6% from 300 to 1100 nm without an anti-reflection coating. These combined wire arrays on a Si substrate were embedded into a transparent polymer. A large-scale wire-embedded soft film was then obtained by peeling the polymer-embedded wire portion from the substrate. Optically attractive features were present in these soft films, making them suitable for use in flexible silicon solar cell applications.

© 2010 OSA

OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(160.4760) Materials : Optical properties
(290.4210) Scattering : Multiple scattering
(350.6050) Other areas of optics : Solar energy

ToC Category:
Scattering

History
Original Manuscript: September 16, 2010
Revised Manuscript: October 27, 2010
Manuscript Accepted: October 27, 2010
Published: December 6, 2010

Citation
Kwang-Tae Park, Zhongyi Guo, Han-Don Um, Jin-Young Jung, Jun Mo Yang, Sung Kyu Lim, Young Su Kim, and Jung-Ho Lee, "Optical properties of Si microwires combined with nanoneedles for flexible thin film photovoltaics," Opt. Express 19, A41-A50 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-S1-A41


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