Unusual enhancement in efficiency of DSSCs upon modifying photoanodes with reduced graphene oxide.
Sujit BhandPlawan Kumar JhaNirmalya BallavPublished in: RSC advances (2022)
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 2 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 TiO 2 photoanode.
Keyphrases
- reduced graphene oxide
- solar cells
- gold nanoparticles
- quantum dots
- visible light
- ionic liquid
- perovskite solar cells
- molecular dynamics simulations
- highly efficient
- electron transfer
- high resolution
- dna repair
- single molecule
- dna damage
- mass spectrometry
- magnetic resonance
- molecularly imprinted
- solid state
- amino acid
- oxide nanoparticles