Novel Extended pi-Conjugated Dendritic Zn(II)-porphyrin Derivatives for Dye-sensitized Solar Cell Based on Solid Polymeric Electrolyte:Synthesis and Characterization

摘要

We have designed and synthesized three Zn(II)-porphyrin derivatives,such as Zn(II) porphyrin ([G-O]Zn-P1) and aryl ether-typed dendron substituted Zn(II)-porphyrin derivatives ([G-1]Zn-P1 and [G-1]Zn-P-CN1).Their chemical structures were characterized by 1H-NMR,FT-IR,UV-vis absorption,El-mass,and MALDI-TOF mass spectroscopies.Their electrochemical properties were studied by cyclic voltammetry measurement.These Zn(II)-porphyrin derivatives have been used to fabricate dye-sensitized solar cells (DSSCs) based on solid polymeric electrolytes as dye sensitizers and their device performances were evaluated by comparing with that of a standard Ru(II) complex dye.[G-1]Zn-P-CNl showed the enhanced power conversion efficiency than those of other porphyrin derivatives,as expected.Short-circuit photocurrent density (J_(sc)),open-circuit voltage (V_(oc)),fill factor (FF),and power conversion efficiency (eta) of solid-typed DSSC for [G-1]Zn-P-CN1 were evaluated to be J_(sc) = 11.67 mA/cm2,V_(oc) = 0.51 V,FF = 0.46,and eta = 2.76%,respectively.