Vahid Jabbari - High performance dye-sensitized solar cells (DSSCs) achieved via electrophoretic technique by optimizing of photoelectrode properties

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      Publication Details (including relevant citation   information):

      Materials Science in Semiconductor Processing 16 (5), 1352-1359

      Abstract:

      This paper describes a simple method utilizing electrophoretic   deposition (EPD) of commercial P25 nanoparticles (NPs) films on   fluoride-doped tin oxide (FTO) substrate. In this process,   voltage and the number of deposition cycles are well controlled   to achieve TiO2 film thickness of around   1.5–26 μm, without any mechanical compression processing.   The experimental results indicate that the TiO2 film   thickness plays an important role as the photoelectrode in DSSCs   because it adsorbs a large number of dye molecules which are   responsible for electrons supply. Furthermore, it was found that   effects of the bulk traps and surface states within the   TiO2 films on the recombination of the photo-injected   electrons (electron–hole pairs) strongly depend on the   TiO2 electrode annealing temperature. Finally, a DSSC   with a 24 μm thick TiO2 film and annealed at   500 °C produced the highest conversion efficiency   (η=6.56%, ISC=16.4,   VOC=0.72, FF=0.55) with an incident solar   energy of 100 mW/cm2.

      Address (URL): doi:10.1016/j.mssp.2012.11.010