Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1665238 | Thin Solid Films | 2014 | 7 Pages |
Abstract
A method for fabrication of highly transparent platinum counter electrodes (CEs) has been developed based on spray coating of Pt nanoparticles (NPs) on hot substrates. This method leads to 86% reduction in Pt consumption reducing the Pt cost per peak watt of counter electrode from $0.79/Wp down to $0.11/Wp compared to the conventional Pt counter electrodes made by sputter deposition. The simplicity and low cost of this method provide a basis for an up-scalable fabrication process. The Pt NP layer is over 88% transparent, leading to overall transparency of 80% when incorporated with indium tin oxide/glass substrates for functional counter electrodes. This counter electrode exhibits a large surface area and high catalytic activity, comparable to that of the conventional opaque CEs. Semi-transparent dye-sensitized solar cells fabricated based on this counter electrode showed 6.17% power conversion efficiency.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Anastasiia Iefanova, Jeevan Nepal, Prashant Poudel, Daren Davoux, Umesh Gautam, Venkataiah Mallam, Qiquan Qiao, Brian Logue, Mahdi Farrokh Baroughi,