Abstract
Pulsed laser ablation of gold (Au) bulk immersed in ethanol and post-ablated size modification process were employed to generate homogeneous size distribution of nanoparticles (~15 nm) and different concentrations of Au colloids without using chemical reagents in the final preparation. A specific concentration of N719 dye molecules with or without Au colloidal solution at different concentrations was mixed and embedded onto the porous titanium dioxide films for photoanodes formation in dye-sensitized solar cells (DSSCs). Optical measurements confirmed the interaction between the dipole moments of the dye and the localized surface plasmon resonance (LSPR) of Au nanoparticles (AuNPs), thereby indicating that AuNPs were in close contact with the adsorbed dye molecules on the surface of the photoanode. The LSPR effects of AuNPs on the performance of DSSCs have been extensively studied by using different concentrations of Au colloids. It was found that, the performance of DSSCs is highly dependent on the concentration of AuNPs. For the highest concentration (9 × 1012 particles/mL), the best achieved plasmonic DSSC performance exhibited a power conversion efficiency of 5.36 %, whereas the reference DSSC (without AuNPs) showed an efficiency of 3.82 %. Thus, an enhancement factor of 40.31 % is indicated.
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 callMore From: Journal of Materials Science: Materials in Electronics
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.
