Langmuir-Schaeffer monolayers of colloidal nanocrystals for cost-efficient quantum dot light-emitting diodes.

Bourvon, Hélène; Le Calvez, Stéphanie; Kanaan, Hani; Meunier-Della-Gatta, Sylvia; Philippot, Cécile; Reiss, Peter · Adv Mater · 2012

basic_science · Level V

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Abstract

Quantum dot (QD) LEDs of high color purity, and low turn-on voltage and leakage current are prepared using a solvent free method. First, a monolayer of QDs is formed at the air/water interface, which is then transferred with a PDMS stamp onto the device. The method is applicable to large substrates and reduces materials consumption as compared to other deposition techniques.

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