Cu2O@CuO core-shell nanoparticles as photocathode for p-type dye sensitized solar cell

Cu2O@CuO core-shell nanoparticles were synthesized via a facile precipitation-thermal oxidation method. The p-type conductivity of this material was confirmed by electrochemical impedance spectroscopy and p-DSSCs were then fabricated by using Cu2O@CuO core-shell nanoparticles as working electrode, and DPP-NDI and I−/I3− as dye and redox mediator, respectively.208