Abstract
Nitrogen doped graphenes (NGs) were synthesized by pyrolysis of graphene polypyrrole composites (G-PPys) for application as counter electrode (CE) in dye sensitized solar cells (DSSCs). The as-prepared NGs demonstrate mesoporous texture with large specific surface areas, high N doping level with homogeneous distribution, as well as moderate graphitization phase, all of these structural and interfacial features are beneficial for abundant active sites and well conductivity, therefore can effectively promote the electrocatalytic reduction of I3⿿ and improve the photovoltaic performances of pertinent DSSCs. The optimized sample, denoted as NG2, used as CE of DSSC exhibit high power conversion efficiency (PCE) (6.8%) with high reliability and durability, which is comparable to that of Pt CE (7.0%). Given the cost effective synthesis and the high electrochemical performance, NG2 herein is a promising non-Pt CE alternative material in DSSC.
Sign-in/Register to access full text options 
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.
