High performance dye-sensitized solar cell from a cocktail solution of a ruthenium dye and metal free organic dye. Issue 47 (25th April 2016)

• Record Type: Journal Article
• Authors: Koyyada, Ganesh; Shome, Sanchari; Chandrasekharam, M.; Sharma, G. D.; Singh, Surya Prakash
• Is Part Of: RSC advances. Volume 6:Issue 47(2016)
• Page Start: 41151
• Page End: 41155
• Publication Date: 2016-04-25
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra07893a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A Ru-based dye K-60 and a metal free D–A organic dye Y1 have been employed for the fabrication of a mixed dye sensitized solar cell (MDSSCs) system. Abstract : A Ru-based dye K-60 and a metal free D–A organic dye Y1 have been employed for the fabrication of a mixed dye sensitized solar cell (MDSSCs) system. The photophysical and electrochemical characterization revealed that the energy levels and absorption profiles of both the dyes are suitable for co-sensitization. We have adopted the cocktail co-sensitization method, in which a TiO2 photoanode was immersed into a mixed solution of K-60 and Y1 for 12 h. The DSSC sensitized with a mixture of K-60 and Y1 exhibited an overall PCE of 8.19% ( J sc = 14.95 mA cm −2, V oc = 0.59 V and FF = 0.71) higher than that for DSSC sensitized with a single K-60 dye (PCE = 6.26%). The higher PCE of the DSSC sensitized with K-60 + Y1 is attributed to the enhancement in both J sc and FF and related to the high and broader IPCE spectra.