Abstract
Photo-electrochemical solar cells based on a core-shell structure including ZnO shell and TiO2 cove, have been fabricated with ruthenium bipyridyl complex (N719) as the sensitizer. Compared with the pure anatase TiO2, the ZnO-covered TiO2 film possesses outstanding ability to transport electrons with an overall power conversion efficiency of 3.72. Elctrochemical study shows that surface modification of TiO2 film with ZnO can increase the concentration of free electrons in the conduction band of TiO2. This remit implies that the charge recombination is reduced in process of electron transport through the TiO2 porous film, which can decrease the photocurrent loss and hence improve Dye-Sensitized solar ceils (DSSCs) efficiency. This result indicates that optimization of TiO2 porous network fabrication condition is efficient, for the improvement of TiO2 based DSSC’s performances.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.