Unusual enhancement in efficiency of DSSCs upon modifying photoanodes with reduced graphene oxide. Issue 46 (20th October 2022)

• Record Type: Journal Article
• Authors: Bhand, Sujit; Jha, Plawan Kumar; Ballav, Nirmalya
• Is Part Of: RSC advances. Volume 12:Issue 46(2022)
• Page Start: 30041
• Page End: 30044
• Publication Date: 2022-10-20
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d2ra05375f
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Reduced graphene oxide (rGO) has emerged as an excellent interfacial material for improvising the performance of dye-sensitized solar cells (DSSC). Abstract : Reduced graphene oxide (rGO) has emerged as an excellent interfacial material for improvising the performance of dye-sensitized solar cells (DSSC). Herein, we have applied rGO as interfacial layers between a fluorine doped tin oxide (FTO) coated glass substrate and semiconducting material TiO2 in a photoanode of a DSSC which showed an unusual enhancement in generating a photocurrent in comparison to the control (without rGO layers). An electrochemical impedance spectroscopy (EIS) study was performed to gain the mechanistic insights into such a remarkable enhancement of photoelectric conversion efficiency (PCE) which revealed improved charge transfer and suppressed charge recombination due to high-electrical conductivity and probably more negative work function of our rGO material compared to the bare TiO2 photoanode.