Expanded Electroluminescence in High Load CdS Nanocrystals PVK-Based LEDs
Immiscibility between dimethyl sulfoxide (DMSO) and polar solvents used for poly(N-vinylcarbazole) (PVK) solutions, leads to failed light-emitting diodes when colloidal cadmium sulfide (CdS) nanoparticles capped with thiophenol are incorporated to their active layer.To prevent this, a heat treatment is applied to the CdS nanoparticles in order to M