Method for fabrication of saturated RGB quantum dot light-emitting devices
Abstract
Creation of patterned, efficient, and saturated color hybrid organic/inorganic quantum dot light emitting devices (QD-LEDs) is dependent on development of integrated fabrication and patterning methods for the QD layer. We show that micro-contact printing can be applied to QD deposition, generating micron-scale pattern definition, needed in pixilated-display applications. We demonstrate saturated color QD-LEDs with external quantum efficiencies in excess of 1%. Combining this technique with the use of wide optical band gap host materials, and a new synthetic route for the creation of blue emitting (CdS)ZnS nanocrystals, it is now possible to fabricate QD-LEDs with saturated color emission in the red, green and blue regions of the spectrum.
- Publication:
-
Light-Emitting Diodes: Research, Manufacturing, and Applications IX
- Pub Date:
- March 2005
- DOI:
- 10.1117/12.590708
- Bibcode:
- 2005SPIE.5739..108C