Synthesis and characterization of a novel bipolar polymer for light-emitting diodes

Abstract

A novel bipolar light-emitting polymer containing both efficient hole and electron injecting/transporting segments exhibiting high thermal stability (T_d = 445 °C), good electrochemical reversibility, excellent thin film-forming and light-emitting properties (bright yellow emission, a rectification ratio greater than 10⁵ and a low turn-on voltage of 3.7 V) is reported.