Vahid Jabbari - Dependence of energy conversion efficiency of dye-sensitized solar cells on the annealing temperature of TiO 2 nanoparticles

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      Publication Details (including relevant citation   information):

      Materials Science in Semiconductor Processing 15 (4), 371-379


      Dye-sensitized solar cells (DSSCs) were fabricated from porous   electrodes derived from sol–gel-synthesized (SGS) nanoparticles   (NPs) of TiO2. Current–voltage measurements were   performed to investigate performance characteristics of   electrodes derived from SGS-NPs of TiO2 annealed at   different temperatures. Experimental results indicate that the   effects of bulk traps and surface states within TiO2  films on recombination of photo-injected electrons in DSSCs   depend upon annealing temperature of SGS-TiO2 NPs.   Moreover, electrodes fabricated from SGS-TiO2 showed   higher photoelectric conversion efficiency than nonporous   commercial (P25) TiO2 NPs. Porous structures within   SGS-TiO2 NPs are of great benefit to sensitizer dye   adsorption, and consequently to improvement of   photo-electrochemical properties of DSSCs.

      Address (URL): doi:10.1016/j.mssp.2011.12.004