Synthesis of a new copper(i) complex, [Cu(tmdcbpy)2]+ (tmdcbpy = 4,4′,6,6′-tetramethyl-2,2′-bipyridine-5,5′-dicarboxylic acid), and its application to solar cells

Abstract

A newly synthesized copper(I) complex, [Cu(tmdcbpy)2]+ (tmdcbpy = 4,4′,6,6′-tetramethyl-2,2′-bipyridine-5,5′-dicarboxylic acid), was applied to a solar cell with TiO2, which provided successful results, a photocurrent of about 4 mA cm−2, photovoltage of 630 mV and an IPCE (incident monochromatic photon-to-current conversion efficiency) value of 30%, under visible light irradiation from a AM 1.5G sunlight simulator (100 mW cm−2).