Self-assembled nanocomposite polymer light-emitting diodes with improved efficiency and luminance

Communication: Nanoparticles assembled at the semiconducting polymer/ elect rode interface affect charge injection into polymer light-emitting diodes ( LEDs), as reported here. It is demonstrated that modification of the ITO an ode using self-assembled monolayers and electrostatically assembled sie, na noparticles can dramatically improve the electroluminescence properties of LEDs-the charged nanoparticle surface induces a dipole moment across the el ectrode interface, effectively increasing the local electric field and prom oting carrier injection.