Enhancing the photovoltaic performance of dye-sensitized solar cells by modifying TiO2 photoanodes with exfoliated graphene sheets. Issue 47 (25th April 2016)

• Record Type: Journal Article
• Authors: Ding, Hui; Zhang, Sam; Juan, Pi-Chun; Liu, Ting-Yu; Du, Zhao-Fu; Zhao, Dong-Liang
• Is Part Of: RSC advances. Volume 6:Issue 47(2016)
• Page Start: 41092
• Page End: 41102
• Publication Date: 2016-04-25
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra05639c
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Exfoliated graphene sheets are obtained using a simple liquid phase sonication and used to achieve higher electrical conductivity and faster electron transfer in dye sensitized solar cell photoanode. Abstract : Exfoliated graphene sheets (EGS) are obtained using simple liquid phase sonication and then mixed with TiO2 nanoparticles in a dye sensitized solar cell photoanode to achieve higher electrical conductivity and faster electron transfer due to much fewer defects as compared to conventional reduced graphene oxide (RGO): I D / I G of 0.256 in EGS as compared with that of 1.128 in RGO. The EGS–TiO2 photoanode yields a conversion efficiency of 8.24%, over a 19% increase compared with that of the RGO–TiO2 photoanode, and a 43% increase over that of TiO2 alone under the same conditions.