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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 20, Iss. S2 — Mar. 12, 2012
  • pp: A168–A176

Enhanced optical absorption of dye-sensitized solar cells with microcavity-embedded TiO2 photoanodes

Da-Wei Liu, I-Chun Cheng, Jian Z. Chen, Hsin-Wei Chen, Kuo-Chuan Ho, and Chin-Cheng Chiang  »View Author Affiliations


Optics Express, Vol. 20, Issue S2, pp. A168-A176 (2012)
http://dx.doi.org/10.1364/OE.20.00A168


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Abstract

This paper reports the enhanced performance of dye-sensitized solar cells (DSSCs) with microcavity-embedded nanoporous TiO2 photoanodes. For DSSCs with photoanodes composed of a stack TiO2 sublayers with microcavity concentrations arranged from low to high on the light illumination path, the short-circuit current density and the conversion efficiency were improved. A pronounced increase in optical absorption and incident monochromatic photon-to-current conversion efficiency in the long-wavelength region indicated that the enhancement of cell performance was due to the multiple scattering of light by the microcavities and the light confinement by the stack of TiO2 sublayers with a high-to-low effective index of refraction.

© 2012 OSA

OCIS Codes
(040.5350) Detectors : Photovoltaic
(350.6050) Other areas of optics : Solar energy

ToC Category:
Photovoltaics

History
Original Manuscript: July 1, 2011
Revised Manuscript: November 2, 2011
Manuscript Accepted: December 5, 2011
Published: January 9, 2012

Citation
Da-Wei Liu, I-Chun Cheng, Jian Z. Chen, Hsin-Wei Chen, Kuo-Chuan Ho, and Chin-Cheng Chiang, "Enhanced optical absorption of dye-sensitized solar cells with microcavity-embedded TiO2 photoanodes," Opt. Express 20, A168-A176 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-S2-A168


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