Eur. Phys. J. Appl. Phys.
Volume 68, Number 3, December 2014
|Number of page(s)||9|
|Section||Physics of Organic Materials and Devices|
|Published online||25 November 2014|
Charge carrier trapping in highly-ordered lyotropic chromonic liquid crystal films based on ionic perylene diimide derivatives
Institute of Physics, National Academy of Sciences of Ukraine, Prospect Nauky 46, 03028
2 Center for Physical Sciences and Technology, Savanoriu 231, LT-02300 Vilnius, Lithuania
3 Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, 02660 Kyiv, Ukraine
4 IMEC, Kapeldreef 75, B-3001 Leuven, Belgium
a e-mail: firstname.lastname@example.org
Revised: 21 September 2014
Accepted: 26 September 2014
Published online: 25 November 2014
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.
© EDP Sciences, 2014
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.