title: High-Efficiency All-Solution-Processed Light-Emitting Diodes Based on Anisotropic Colloidal Heterostructures with Polar Polymer Injecting Layers.
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.
authors.affiliation: †Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, via Cozzi 55, I-20125 Milano, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Castelli
authors.affiliation: †Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, via Cozzi 55, I-20125 Milano, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Meinardi
authors.affiliation: ‡Istituto per lo Studio delle Macromolecole, Consiglio Nazionale delle Ricerche (ISMac-CNR), Via Bassini, 15, 20133 Milano, Italy.
authors.forename: Mariacecilia
authors.initials: M
authors.lastname: Pasini
authors.affiliation: ‡Istituto per lo Studio delle Macromolecole, Consiglio Nazionale delle Ricerche (ISMac-CNR), Via Bassini, 15, 20133 Milano, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Galeotti
authors.affiliation: †Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, via Cozzi 55, I-20125 Milano, Italy.
authors.forename: Valerio
authors.initials: V
authors.lastname: Pinchetti
authors.affiliation: †Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, via Cozzi 55, I-20125 Milano, Italy.
authors.forename: Monica
authors.initials: M
authors.lastname: Lorenzon
authors.affiliation: §Istituto Italiano di Tecnologia, via Morego 30, IT-16163 Genova, Italy.
authors.forename: Liberato
authors.initials: L
authors.lastname: Manna
authors.affiliation: §Istituto Italiano di Tecnologia, via Morego 30, IT-16163 Genova, Italy.
authors.forename: Iwan
authors.initials: I
authors.lastname: Moreels
authors.affiliation: ‡Istituto per lo Studio delle Macromolecole, Consiglio Nazionale delle Ricerche (ISMac-CNR), Via Bassini, 15, 20133 Milano, Italy.
authors.forename: Umberto
authors.initials: U
authors.lastname: Giovanella
authors.affiliation: †Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, via Cozzi 55, I-20125 Milano, Italy.
authors.forename: Sergio
authors.initials: S
authors.lastname: Brovelli
keywords: Nanocrystal quantum dot; electron injecting layer; light-emitting diode; nanorods; polar polymer; solution processing