- Glass-forming hole-transporting triphenylamine-based hydrazones with reactive functional groups
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Synthesis and the properties of a series of triphenylamine-based hydrazones are reported. The dependence of their thermal and glass-forming properties on their chemical structure is discussed. The ionization potentials of the synthesized hydrazones measured by the electron photoemission technique range from 5.16 to 5.32 eV. Hole-drift mobilities of some derivatives molecularly dispersed in bisphenol Z polycarbonate exceed 10-4cm2V-1s-1 at high electric fields (106V/cm),at room temperature.
- Matoliukstyte, Ausra,Grazulevicius, Juozas Vidas,Jankauskas, Vygintas
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- Donor and acceptor substituted triphenylamines exhibiting bipolar charge-transporting and NLO properties
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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.
- Gudeika, Dalius,Bundulis, Arturs,Mihailovs, Igors,Volyniuk, Dmytro,Rutkis, Martins,Grazulevicius, Juozas V.
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p. 431 - 440
(2017/02/10)
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- Triphenylamine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor
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A triphenylamine derivative, represented by the following general formula (1): STR1 wherein R1, R2, R3, R4, R5 and R6 each represents a hydrogen atom, a lower alkyl group, an alkoxy group, a halogen atom or an aryl group which may have a substituent group; and m and n each represents 0 or 1.
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- Triphenylamine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor
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A triphenylamine derivative, a charge-transporting material comprising the triphenylamine derivative, and an electrophotographic photoreceptor containing a charge-transporting layer comprising the triphenylamine derivative are disclosed, wherein the triphenylamine derivative is represented by the following general formula (1): STR1 wherein R1, R2, R3, R4, and R5 may be the same or different and each represents a hydrogen atom, a lower alkyl group, an alkoxy group, a halogen atom, or an aryl group which may have a substituent, or R1 and R2 and/or R3 and R4 may be taken together to form a ring, and n represents 0 or 1.
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