Synthesis and Electroluminescence of Novel Copolymers with Charges Transporting Moieties

The synthesis of novel copolymers, in which the electron transporting unit (oxadiazole), hole transporting unit (carbazole) and emitter (naphthalimide) are incorporated into one copolymer, has been reported. It was demonstrated that EL spectra of device made by these copolymers has a broad luminescent spectrum with range of 450-650 nm, which can be quantified in CIE coordinates as x = 0.32 and y = 0.37.