73‐2: Invited Paper: High‐Performance Quantum Dot Light Emitting Diodes and their Challenges. Issue 1 (30th May 2018)

• Record Type: Journal Article
• Authors: Acharya, Krishna P.; Titov, Alexandre; Ying, Chen Y.; Hyvonen, Jake; Holloway, Paul H.
• Is Part Of: Digest of technical papers. Volume 49:Issue 1(2018)
• Page Start: 969
• Page End: 972
• Publication Date: 2018-05-30
• Subjects: Quantum dots -- Quantum dot light emitting diode -- QLED -- Electroluminescence -- Zinc oxide nanoparticle -- Electron transport layer -- Solution processing; Information display systems -- Congresses; 621.3815422
• DOI: 10.1002/sdtp.12207
• Languages: English
• ISSNs: 0097-966X

Abstract

Abstract : Displays made using colloidal quantum dots as electroluminescent (EL) emitter is a very promising display technology because it is efficient, emits pure color, and is inexpensive. We have demonstrated highly efficient red, green, and blue quantum dot light emitting diodes (QLEDs) using a colloidal zinc oxide nanoparticle electron transport layer. Here, we will report QLEDs with external quantum efficiency >15% for red, green, and blue color (approaching the theoretical‐limit of ~22% for green) QLEDs. Finally, we will discuss some of the challenges that must be addressed to successfully commercialize EL‐QLED displays.