Abstract: To prepare highly efficient optical sensors to UVA light, the following strategies were adopted. An organic photovoltaic (PV) device, in which 4,4′,4′′-tris[3-methylphenyl (phenyl)amino]triphenylamine (m-MTDATA) and Re(CO)3Cl-dipyrido [3,2-a:2',3'-c]phenazine (Re-DPPz) were used as electron donor and acceptor, respectively, has been fabricated. Under illumination with UV light (365 nm, 1.6 mW/cm2), the short circuit current (Isc), open circuit voltage (Voc), fill factor (FF) and power conversion efficiency of the PV device were measured to be 57.1μA/cm2, 0.86 V, 0.39, 1.2% respectively. These results indicate that the Re-DPPz complex, a promising triplet emitter in electroluminescence (EL) devices, also possesses good PV performance.