Preparation, characterization and electrical properties of alkali metal ions doped co-polymers based on TBF

Abstract Click reaction method led to the formation of polymeric structures with 1,2,3-triazoles. By applying methodology we have synthesized thiophene-bisphenyl fluorene (TBF) based co-polymer, containing triazole ring on its back-bone and doped it with Li+, Na+ and K+ metal ions. Upon doping with these metal ions, the non-conducting (TBF) polymer becomes ionic conducting in nature i.e. (TBF)n− (Li+)n, (TBF)n− (Na+)n, and (TBF)n− (K+)n. Among the all doped polymers, K+ doped polymer shows best conductivity (conductivity ~ 2.5 × 10−4 S/cm), low band gap, low activation energy, dielectric properties, capacitance, dielectric permittivity loss, dielectric loss and electrical modulus. These properties of solid polymeric electrolytic materials make it more useful in the field of organic voltaics.