6533b853fe1ef96bd12acb7f
RESEARCH PRODUCT
Donor and acceptor substituted triphenylamines exhibiting bipolar charge-transporting and NLO properties
Juozas V. GrazuleviciusDmytro VolyniukArturs BundulisDalius GudeikaMartins RutkisIgors Mihailovssubject
Materials scienceAmbipolarTriphenylamineGeneral Chemical EngineeringHyperpolarizability02 engineering and technology010402 general chemistryPhotochemistryTriphenylamine7. Clean energy01 natural scienceschemistry.chemical_compoundElectron affinityIonization:NATURAL SCIENCES:Physics [Research Subject Categories]Glass transition temperatureglass transition temperatureAmbipolar diffusionProcess Chemistry and TechnologyMalonodinitrile021001 nanoscience & nanotechnologyAcceptortriphenylamineambipolarSecond order hyperpolarizability0104 chemical scienceschemistrysecond order hyperpolarizabilityPhysical chemistrymalonodinitrileCyclic voltammetry0210 nano-technologyGlass transitiondescription
Donor-acceptor type triphenylamine-based malonodinitriles were synthesized and their thermal, optical, photophysical, electrochemical and nonlinear optical properties were studied. The synthesized compounds formed glasses with the glass transition temperatures ranging from 38 to 107 °C. The ionization potentials of the samples of the compounds established by cyclic voltammetry were found to be in the range of 5.50–5.57 eV, while those estimated by photoelectron emission spectrometry ranged from 5.36 to 5.74 eV. The electron affinity values of the compounds were found to be in the range of −3.41–−3.05 eV. The ambipolar charge-transporting properties were observed for the layers of triphenylamine-based malonodinitriles. Hole mobilities of the layers of the compounds were in the range of 10−7–10−6 cm2/V·s, while electron mobilities were by ca. two orders of magnitude higher. All the synthesized compounds had positive sign for second order hyperpolarizability.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-01 |