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International Journal of Photoenergy
Volume 2006, Article ID 75483, 6 pages
http://dx.doi.org/10.1155/IJP/2006/75483

Dye-sensitized solar cells and solar module using polymer electrolytes: Stability and performance investigations

Laboratório de Nanotecnologia e Energia Solar (LNES), Instituto de Quımica, UNICAMP, C. Postal 6154, Campinas, SP 13084-971, Brazil

Received 16 February 2006; Revised 21 June 2006; Accepted 21 June 2006

Copyright © 2006 Jilian Nei de Freitas et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We present recent results on solid-state dye-sensitized solar cell research using a polymer electrolyte based on a poly(ethylene oxide) derivative. The stability and performance of the devices have been improved by a modification in the method of assembly of the cells and by the addition of plasticizers in the electrolyte. After 30 days of solar irradiation (100 mW cm-2) no changes in the cell's efficiency were observed using this new method. The effect of the active area size on cell performance and the first results obtained for the first solar module composed of 4.5 cm2 solid-state solar cells are also presented.