First evidence of electrode reconstruction in mesoporous NiO after operation as photocathode of dye-sensitized solar cells
For the first time it is shown that the NiO films operating as
photocathodes in dye-sensitized solar cells (DSCs), alter their Xray
diffraction (XRD) pattern upon occurrence of the photoelectrochemical
reaction of reduction. In particular, it has been
observed that mesoporous NiO sensitized with Fast Green (FG)
presents splitting and broadening of its characteristic XRD
peaks after device operation in p-type DSC (p-DSC) and tandem
DSC (t-DSC). The nature of the changes in the diffraction