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International Journal of Photoenergy
Volume 2019, Article ID 1812879, 16 pages
https://doi.org/10.1155/2019/1812879
Review Article

Recent Progress of Graphene-Based Photoelectrode Materials for Dye-Sensitized Solar Cells

1Mechanical Engineering Department, Wichita State University, 1845 Fairmount Street, Wichita, KS 67260, USA
2Mechanical Engineering Department, Conn Center for Renewable Energy Research, University of Louisville, 332 Easter Parkway, Louisville, Kentucky 40292, USA

Correspondence should be addressed to Wei Wei; ude.atihciw@iew.iew

Received 14 September 2018; Revised 23 December 2018; Accepted 12 February 2019; Published 26 March 2019

Academic Editor: Leonardo Palmisano

Copyright © 2019 Kaustubh Patil et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Graphite with a single atomic layer known as graphene shows great capability in energy conversion and storage devices. Dye-sensitized solar cells (DSSCs) have attracted intense interests due to offering high photo-to-electric conversion efficiencies. DSSCs are built from a photoelectrode (a dye-sensitized nanocrystalline semiconductor), an electrolyte with redox couples, and a counterelectrode. In this review article, we outline the strategies to enhance the efficiency and reduce the cost by introducing graphene into the DSSCs as the photoelectrode. First, the development of DSSCs and the properties of graphene are briefly described. Then, the applications of graphene-based materials for photoelectrodes (transparent electrode, semiconductor layer, and dye sensitizer) in DSSCs are deeply discussed. Finally, an outlook for graphene materials in DSSCs is provided.