81‐2: High Performance Red Cadmium‐free Inverted Quantum Dot Light Emitting Diodes

Abstract

We demonstrate a highly efficient red cadmium-free quantum dot light-emitting diode (QLED) comprising inverted structure and ZnO:Mg nanoparticles as an electron transport layer. Fabricated QLED reveals maximum external quantum efficiency of 4.46% and more than two-fold increase in efficiency (10.17%) after aging for several days. KeywordsCadmium-free quantum dot; light emitting diode; inverted structure; charge balance; electron transport layer.