Stable and efficient quantum-dot light-emitting diodes based on solution-processed multilayer structures

Researchers demonstrate solution-processed light-emitting diodes based on a quantum-dot emissive layer between an organic hole-transport layer and an electron-transport layer of ZnO nanoparticles. The device achieves a luminance of 68,000 cd m−2 and power efficiencies of up to 8.2 lm W−1.