Journal
NANO LETTERS
Volume 15, Issue 8, Pages 5455-5464Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b01849
Keywords
Nanocrystal quantum dot; nanorods; polar polymer; solution processing; light-emitting diode; electron injecting layer
Categories
Funding
- Cariplo Foundation [2012-0844, 2010-0564]
- European Community [324603]
- Regione Lombardia [decreto 3667/2013]
- Fondazione Cassa di Risparmio di Tortona
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Colloidal quantum dots (QDs) are emerging as true candidates for light-emitting diodes with ultrasaturated colors. Here, we combine CdSe/CdS dot-in-rod hetero-structures 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.
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