R/G/B/natural white light thin colloidal quantum dot-based light-emitting devices

Abstract

Bright, low-voltage driven colloidal quantum dot (QD)-based white light-emitting devices (LEDs) with practicable device performances are enabled by the direct exciton formation within quantum-dot active layers in a hybrid device structure. Detailed device characterization reveals that white-QLEDs can be rationalized as a parallel circuit, in which different QDs are connected through the same set of electrically common organic and inorganic charge transport layers.

Keywords: electroluminescence; nanocrystals; organic-inorganic hybrid device structure; quantum dot-based light-emitting diodes; quantum dots; white light-emitting diodes.