Special Section on Organic Light-Emitting Materials and Devices

On the way to wafer-level quantum dot light-emitting diodes

[+] Author Affiliations
Hélène Bourvon, Stéphanie Le Calvez, Hani Kanaan, Sylvia Meunier Della Gatta

CEA-LETI, MINATEC Campus, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France

Cécile Philippot

CEA-LETI, MINATEC Campus, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France

INAC/UMR SPrAM, CEA-CNRS—LEMOH, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France

Peter Reiss

INAC/UMR SPrAM, CEA-CNRS—LEMOH, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France

J. Photon. Energy. 2(1), 021206 (Apr 11, 2012). doi:10.1117/1.JPE.2.021206
History: Received September 5, 2011; Revised January 13, 2012; Accepted January 13, 2012
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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.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Hélène Bourvon ; Stéphanie Le Calvez ; Hani Kanaan ; Sylvia Meunier Della Gatta ; Cécile Philippot, et al.
"On the way to wafer-level quantum dot light-emitting diodes", J. Photon. Energy. 2(1), 021206 (Apr 11, 2012). ; http://dx.doi.org/10.1117/1.JPE.2.021206


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