Title: Charge carrier trapping in highly-ordered lyotropic chromonic liquid crystal films based on ionic perylene diimide derivatives
Authors: Soroka, Pavlo V ×
Vakhnin, Alexander Yu
Skryshevskiy, Yuriy A
Boiko, Oleksandr P
Anisimov, Maksim I
Slominskiy, Yuriy L
Nazarenko, Vassili G
Genoe, Jan
Kadashchuk, Andriy #
Issue Date: Dec-2014
Publisher: EDP Sciences
Series Title: European Physical Journal. Applied Physics vol:68
Article number: 30201
Abstract: Charge carrier trapping in thin films of lyotropic chromonic liquid crystals (LCLCs) based on ionic perylene diimide derivative and in chemically-similar neutral N,N′-dipentyl-3,4,9,10-perylene-dicarboximide (PTCDI-C5) films is investigated by thermally-stimulated luminescence (TSL) technique. The LCLC films comprise elongated molecular aggregates featuring a long-range orientational order. The obtained results provide direct evidence for the improved energetic ordering (smaller effective energetic disorder) in aggregated LCLC films as compared to conventional PTCDI-C5 films. The width of the density-of-state distribution of 0.09 eV and 0.13 eV was estimated for the LCLC and PTCDI-C5 films, respectively. Relatively small effective energetic disorder in LCLC films is ascribed to formation of macroscopically larger LCLC aggregates.
ISSN: 1286-0042
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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