Photoelectrochemical Cells of CBD-Coated Cu2S Nanoparticle-Sensitized ZnO Nanorods
Keywords:
SILAR, CBD, ZnO Nanorods,Cu2S NPs, Photoelectrochemical Cells.Abstract
In present study, Cu2S nanoparticles (NPs) and ZnO nanorods (NRs) were synthesized using chemical methods
and applied in photoelectrochemical cells as an electrode material. The X-ray diffraction spectrums were applied for
confirming the respective crystal structures which further were supported by energy dispersive X-ray analysis mappings
where elemental composition proportions, as expected, are obtained. From Raman spectroscopy patterns revealed
chemical bonds for Cu2S coated ZnO. Surface morphologies were noticed from the field-emission scanning electron
microscopy digital images. By UV-Vis spectroscopy analysis, optical band gap of ZnO decreased from 3.205 eV to 2.78
eV for Cu2S-ZnO. The power conversion efficiency () of Cu2S-ZnO electrode was 0.160% which was 0.07% for ZnO.
This increment was assigned to the decrease of the charge transport resistance from 95 to 79 in electrochemical
impedance spectroscopy measurement.