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High-efficiency all-solution-processed light-emitting diodes based on anisotropic colloidal heterostructures with polar polymer injecting layers

Castelli, Andrea, Meinardi, Francesco, Pasini, Mariacecilia, Galeotti, Francesco, Pinchetti, Valerio, Lorenzon, Monica, Manna, Liberato, Moreels, Iwan, Giovanella, Umberto and Brovelli, Sergio 2015. High-efficiency all-solution-processed light-emitting diodes based on anisotropic colloidal heterostructures with polar polymer injecting layers. Nano Letters 15 (8) , pp. 5455-5464. 10.1021/acs.nanolett.5b01849

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Abstract

Colloidal quantum dots (QDs) are emerging as true candidates for light-emitting diodes with ultrasaturated colors. Here, we combine CdSe/CdS dot-in-rod heterostructures and polar/polyelectrolytic conjugated polymers to demonstrate the first example of fully solution-based quantum dot light-emitting diodes (QD-LEDs) incorporating all-organic injection/transport layers with high brightness, very limited roll-off and external quantum efficiency as high as 6.1%, which is 20 times higher than the record QD-LEDs with all-solution-processed organic interlayers and exceeds by over 200% QD-LEDs embedding vacuum-deposited organic molecules

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: American Chemical Society
ISSN: 1530-6984
Date of First Compliant Deposit: 7 May 2019
Date of Acceptance: 22 July 2015
Last Modified: 17 May 2019 11:45
URI: http://orca-mwe.cf.ac.uk/id/eprint/122241

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