International Journal of Photoenergy (Jan 2011)

Enhanced Light Harvesting in Dye-Sensitized Solar Cell Using External Lightguide

  • Chi-Hui Chien,
  • Ming-Lang Tsai,
  • Chi-Chang Hsieh,
  • Yan-Huei Li

DOI
https://doi.org/10.1155/2011/261828
Journal volume & issue
Vol. 2011

Abstract

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An external lightguide (EL) for enhancing the light-harvesting efficiency of dye-sensitized solar cells (DSSCs) was designed and developed. The EL attached to the exterior of a DSSC photoelectrode directed light on a dye-covered nanoporous TiO2 film (D-NTF) of the photoelectrode. Experimental tests confirmed that the EL increased the light-harvesting efficiency of a DSSC with an active area of 0.25 cm2 by 30.69%. Photocurrent density and the power conversion efficiency were also increased by 38.12% and 25.09%, respectively.