Transparent quantum dot light-emitting diodes with dielectric/metal/dielectric electrode

摘要

Quantum dot light emitting diodes (QD-LEDs) are formed that are transparent and emit light from the top and bottom faces. At least one electrode of the QD-LEDs is a dielectric/metal/dielectric layered structure, where the first dielectric comprises metal oxide nanoparticles or polymer-nanoparticle blends and is 10 to 40 nm in thickness, the metal layer is 5 to 25 nm in thickness, and the second dielectric layer is a nanoparticulate, polymer-nanoparticle blend or continuous layer of 30 to 200 nm in thickness and is situated distal to the light emitting layer of the QD-LED.

主权项

1. A quantum dot light emitting diode (QD-LED) comprising:
a light emitting layer comprising a plurality of quantum dots (QDs); and at least one dielectric/metal/dielectric (DMD) electrode comprising a first dielectric layer proximal to the light emitting layer, a metal layer and a second dielectric layer distal to the light emitting layer, wherein the first dielectric layer and the second dielectric layer comprise nanoparticles or polymer-nanoparticle blends, wherein the DMD electrode is a transparent cathode.