Cu-BTC and graphene co-modified dye sensitize solar cells with high performances
Cu-BTC and three-dimensional graphene networks(3DGNs)were employed to modify the photoanode of dye sensitize solar cells(DSSCs),and the remarkably enhanced short circuit current and incident photon to current conversion efficiency have been achieved.The major reasons are the in-creased BET area of the resulting photoanode and the formed fast transport channel for the photoin-duced electrons.The morphology of photoanode was analyzed by SEM and XRD,and the photocata-lytic performances were detected by current-voltage curves and incident photon to current conversion efficiency and the synergy between the Cu-BTC,3DGNs,and TiO2 can be achieved by adjusting the mass fraction.Moreover,the scattering ability of the photoanode to incident light also can be con-trolled by modulating the size of Cu-BTC.After optimizing the photoanode,the short circuit current,open circuit voltaic,fill factor and energy conversion efficiency of the as-prepared device reached(20.5±0.1)mA/cm2,(680±2)mV,(61.9±0.1)％,(8.63±0.1)％.
Cu-BTCthree-dimensional graphene networksdye sensitize solar cellsphotoanode
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维普
