Non-covalent interaction of PC70BM with Pc in presence of AuNp is studied in solution.
Remarkable enhancement in energy transfer efficiency from ZnPc to AuNp is observed.
H2Pc is found to undergo strong intermolecular interaction with PC70BM.
Large value of quantum yield of charge-separation is observed for ZnPc-AuNp conjugate.
TEM images evoke formation of particles having large diameter for ZnPc-AuNp system.