Small band gap D-π-A-π-D benzothiadiazole derivatives with low-lying HOMO levels as potential donors for applications in organic photovoltaics: a combined experimental and theoretical investigation

Abstract

Small organic molecules with potential applications as donors in OPV featuring carbazole, benzocarbazole as donors, benzothiadiazole as acceptor and fluorene, thiophene as spacers (π) have been synthesized and characterized.