A tetrathiafulvalene vinylogue-based double-layer polymer thin film as a highly sensitive and selective TNT sensor

Abstract

A redox-active polymer thin film prepared via electropolymerization of a dithiafulvenyl-substituted phenylacetylene precursor was surface-modified using a fluorene-cored phenylene vinylene dendrimer carrying dithiafulvenyl endgroups. The resulting double-layer polymer thin film showed excellent sensitivity and selectivity in electrochemical sensing of TNT.