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

Journal Article · Wed Jul 15 00:00:00 EDT 2015 · Semiconductors

DOI:https://doi.org/10.1134/S1063782615070155· OSTI ID:22469829

Kurochkin, N. S.; Vitukhnovsky, A. G. ^[1]; Tananaev, P. N. ^[2]

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1. Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)
2. Dukhov Research Institute of Automation (Russian Federation)

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.

• OSTI ID: 22469829
• Journal Information: Semiconductors, Vol. 49, Issue 7; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHARGE CARRIERS
ELECTRICAL PROPERTIES
ENERGY TRANSFER
LAYERS
LIGANDS
LIGHT EMITTING DIODES
NANOPARTICLES
OPTICAL PROPERTIES
PASSIVATION
QUANTUM DOTS