Decrease of back recombination rate in CdS quantum dots sensitized solar cells using reduced graphene oxide |
UV-Vis absorption spectra of the plain TiO2 photoanode, RGO+TiO2 nanocomposite photoanode, CdS QDs (six cycles) sensitized TiO2 NPs photoanode, and CdS QDs (six cycles) sensitized RGO+TiO2 nanocomposite photoanode. |