Abstract
In this work, the in situ decoration of CuSCN nanorod thin films with carbon quantum dots (CQDs) was achieved through a one-pot electrochemical deposition process. The hybridization of CQDs would not change the nanorod structure and p-type characteristic of CuSCN thin film. Compared with the pristine CuSCN thin film, the CQDs/CuSCN composite thin film exhibited significantly improved photoelectrochemical (PEC) activities. The photocurrent intensity of the composite thin film electrode was approximately 6.5 times that of the CuSCN thin film electrode. The improved PEC activities could be ascribed to the highly efficient generation, separation and migration of excited charge carriers derived from the decoration of CQDs on the surface of CuSCN nanorods, as verified by the electrochemical impedance spectra (EIS), photoluminescence, charge extraction, intensity-modulated photocurrent spectroscopy (IMPS) and intensity-modulated photovoltage spectroscopy (IMVS) measurements. The superior PEC properties of the CQDs/CuSCN composite thin film make it a promising hole transporting material or photocathode material for practical PEC applications including solar cells and PEC water splitting.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
