Prolonged Lifetime in Nanocrystal Light-Emitting Diodes Incorporating MoS2-Based Conjugated Polyelectrolyte Interfacial Layer as an Alternative to PEDOT:PSS
Source abstract
Abstract
Colloidal semiconductor nanocrystals (NCs) and, recently, nanoplatelets (NPLs), owing to their efficient and narrow-band luminescence, are considered as frontier materials for light-emitting diode (LED) technology. NC-LEDs typically incorporate interfacial layers as charge regulators to ensure charge balancing and high performance. In this Letter, we show the prolongation of the lifetime of multilayer solution-processed NC-LEDs by combining a self-doped conductive conjugated polyelectrolyte and exfoliated molybdenum disulfide (MoS2) flakes as an alternative to PEDOT:PSS. The ink features a neutral pH and a tunable hydrophobicity that mainly results in a remarkable stability of LEDs, using CdSe/CdZnS NPLs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · Perovskite Materials and Applications · 2D Materials and Applications
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Affiliations
CNR-SCITEC, via A. Corti 12, 20133 Milano, Italy
CNR-IMM, unit of Agrate Brianza, via C. Olivetti 2, 20864 Agrate Brianza (MB), Italy
Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, via Cozzi 55, I-20125 Milano, Italy
Laboratoire de Physique et d’Etude des Matériaux, ESPCI-ParisTech, PSL Research University, Sorbonne Université UPMC, Université Paris 06, CNRS, 10 rue Vauquelin, 75005 Paris, France
Funding
Regione Lombardia · Ministero dell?Istruzione, dell?Universit? e della Ricerca
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