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Unusual enhancement in efficiency of DSSCs upon modifying photoanodes with reduced graphene oxide.

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.

SUBMITTER: Bhand S

PROVIDER: S-EPMC9583721 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature

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Unusual enhancement in efficiency of DSSCs upon modifying photoanodes with reduced graphene oxide.

Bhand Sujit S Jha Plawan Kumar PK Ballav Nirmalya N

RSC advances 20221020 46

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 TiO<sub>2</sub> 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) stud ...[more]

PMID: 36329946

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