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Journal of Photonics for Energy

On the way to wafer-level quantum dot light-emitting diodes
Author(s): Hélène Bourvon; Stéphanie Le Calvez; Hani Kanaan; Sylvia Meunier-Della-Gatta; Cécile Philippot; Peter Reiss
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Paper Abstract

Solution-processed quantum dot light-emitting diodes (QDLEDs) have recently paved the way for low-cost and color-saturated displays. Indeed, quantum dots (QDs) have the appealing property of emitting at a tunable wavelength determined by their chemical composition and diameter. Therefore, QDLED electroluminescent spectra exhibit a narrow bandwidth (FWHM at approximately 30 nm) and QD-based displays offer high color purity and saturation. Moreover, QDs may be deposited by spin coating, inkjet printing, and stamping, methods already implemented for polymer LEDs at the wafer level. We report the optimization steps and performances of our recent developed devices emitting in the visible range. We present pros and cons relative to each method of QD deposition and develop a strategy for realizing wafer-level QDLEDs.

Paper Details

Date Published: 11 April 2012
PDF: 11 pages
J. Photon. Energy 2(1) 021206 doi: 10.1117/1.JPE.2.021206
Published in: Journal of Photonics for Energy Volume 2, Issue 1
Show Author Affiliations
Hélène Bourvon, CEA-LETI-Minatec (France)
Stéphanie Le Calvez, CEA-LETI-Minatec (France)
Hani Kanaan, CEA-LETI-Minatec (France)
Sylvia Meunier-Della-Gatta, CEA-LETI-Minatec (France)
Cécile Philippot, CEA-LETI-Minatec (France)
Peter Reiss, Commissariat à l'Énergie Atomique (France)

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