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Title: Effect of the length of ligands passivating quantum dots on the electrooptical characteristics of organic light-emitting diodes

The electrooptical characteristics of organic light-emitting diodes with quantum dots passivated with organic ligands of different lengths as emitting centers are investigated. It is established that the thickness of the ligand coating covering the quantum dots has little effect on the Förster energy transfer in the diodes, but significantly affects the direct injection of charge carriers into the quantum-dot layer. It is shown that the thickness of the passivation coating covering the quantum dots in a close-packed nanoparticle layer is deter- mined both by the length of passivating ligands and the degree of quantum-dot coverage with ligands.
Authors:
; ;  [1] ;  [2]
  1. Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)
  2. Dukhov Research Institute of Automation (Russian Federation)
Publication Date:
OSTI Identifier:
22469829
Resource Type:
Journal Article
Resource Relation:
Journal Name: Semiconductors; Journal Volume: 49; Journal Issue: 7; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHARGE CARRIERS; ELECTRICAL PROPERTIES; ENERGY TRANSFER; LAYERS; LIGANDS; LIGHT EMITTING DIODES; NANOPARTICLES; OPTICAL PROPERTIES; PASSIVATION; QUANTUM DOTS