Abstract
Two new organic sensitizers of type D-π-A (Donor-π-Acceptor) and D-(π-A)2 were designed and synthesized to understand the effect of anchoring mode towards TiO2 film which leads to influence the efficiency of the fabricated dye sensitized solar cells. These dyes were synthesized based on the triphenylamine as electron donor, phenylhydrazine as π-conjugated spacer and 4-iodobenzoic acid as anchoring/acceptor group and characterized by 1H, 13C NMR and mass spectroscopy studies. The optical absorption of sensitizers shows red shift as well as high molar extinction co-efficient with extension of the π-conjugation and the quantum chemical calculation studies were performed to provide sufficient driving force for electron injection into conduction band of TiO2. The DSSC based on type D-(π-A)2 shows power conversion efficiency (PCE = η) 1.07% under simulated AM 1.5 G; due to more positive HOMO values, higher IPCE values, high adsorption capacity on TiO2 as well as longer electron life time of dye.
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.
