Glass-forming hole-transporting carbazole-based hydrazone monomers, polymers, and twin compounds

• Published in: Reactive & functional polymers 2010-02, Vol.70 (2), p.81-87
• Main Authors: Juskelyte, Egle, Lygaitis, Ramunas, Buika, Gintaras, Ostrauskaite, Jolita, Gudeika, Dalius, Grazulevicius, Juozas Vidas, Jankauskas, Vygintas
• Format: Article
• Language: English
• Subjects: Applied sciences; Carbazole; Charge transport; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Conductivity of specific materials; Electronic transport in condensed matter; Exact sciences and technology; Hydrazone; Ionization potential; Monomer; Organic polymers; Physicochemistry of polymers; Physics; Polymer; Polymers with particular properties; Polymers; organic compounds (including organic semiconductors); Preparation, kinetics, thermodynamics, mechanism and catalysts
• ISSN: 1381-5148
• DOI: 10.1016/j.reactfunctpolym.2009.10.008

The synthesis, optical, thermal, and photoelectrical properties of new carbazole-based hydrazone monomers, polymers, and twin compounds are reported. All the synthesized materials are capable of glass formation. Their glass transition temperatures range from 27 to 90 °C. The ionization potentials of the films of carbazole-based hydrazones measured by the electron photoemission technique range from 5.18 to 5.48 eV. Hole-drift mobilities in the amorphous films of the synthesized hydrazone monomers measured by the time-of-flight technique at room temperature reach 10 −4 cm 2/(V s) at high applied electric fields.