Light to electrical energy conversion with a multichromophoric dye-sensitized solar cells (DSCs) based on self-assembled zinc-porphyrin���peryleneimide dyads will be presented. The coordination of ZnP with N-pyridyl-peryleneimide (PyPMI) led to the formation of a supramolecular ZnP���PyPMI dyad. DSCs were fabricated using dyad TiO2-coated F: SnO2 (FTO) as working electrode, platinized indium tin oxide (Pt/ITO) counter electrode and I-/I3- as a redox mediator. Dyad based DSCs generated a much higher open-circuit voltage, short-circuit current and energy conversion efficiency (?= 1.1 � 0.06%) than DSCs made of individual dyes under 1.5 Air Mass condition. The efficiency of the dyad system is 12 times of greater than ZnP and 1.5 times higher than PMI dye and this may be due to the co-sensitization as well as vectorial electron transfer which led to better electron�hole separation within devices.

Multichromophoric dye-sensitized solar cells based on supramolecular zinc-porphyrin���perylene-imide dyads

245th National Meeting (2013)

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Multichromophoric dye-sensitized solar cells based on supramolecular zinc-porphyrin���perylene-imide dyads

Multichromophoric dye-sensitized solar cells based on supramolecular zinc-porphyrin��perylene-imide dyads