A. Umar, A. A. Alharbi, P. Singh and S. A. Sayari, “Growth of Aligned Hexagonal ZnO Nanorods on FTO Substrate for Dye-Sensitized Solar Cells (DSSCs) Application,” Journal of Nanoscience and Nanotechnology, Vol. 11, No. 4, 2011, pp. 3560-3564.

has been cited by the following article:

• TITLE: Increasing Dye-Sensitized Solar Cell Efficiency by ZnO Spin-Coating of the TiO2 Electrode: Effect of ZnO Amount

  AUTHORS: Fahd Al-Juaid, Amar Merazga

  KEYWORDS: ZnO Spin-Coating; Dye-Sensitized Solar Cell; Efficiency

  JOURNAL NAME: Energy and Power Engineering, Vol.5 No.10, December 25, 2013

  ABSTRACT: This paper is concerned with the improvement of dye-sensitized solar cell (DSSC) efficiency upon ZnO-coating of the TiO2 electrode. Sol-gel ZnO of controlled amount by varying the number of sol drops during spin-coating is shown to increase the DSSC efficiency. The highest efficiency is obtained at a single sol drop with enhancement of 40%, while beyond this amount the efficiency falls down sharply to zero. Based on measured optical absorption spectra of the different dye-loaded electrodes, it is concluded that this amount of ZnO sol corresponds to the thinnest layer that can create the energy barrier to minimize the electron recombination rate without seriously affecting the dye adsorption efficiency of the TiO2 film.