The synthesis and properties of well defined carbazolyl-containing molecular glasses is reported. They were prepared by the nucleophilic opening of the oxirane ring of 1,3-di(carbazol-9-yl)-2-propanol, 1-(carbazol-9-yl)-3-diphenylamino-2-propanol or 1-(3,6-dibromocarbazol-9-yl)-3-(carbazol-9-yl)-2-propanol glycidyl ethers with 1,3-benzenediol in the presence of triethylamine. The electrophotographic parameters of undoped films of the molecular glasses and of those doped with difluoroboron-1,3- bis(4-methoxyphenyl)-1,3-propanedionate have been studied. The hole drift moblities measured by the time of flight technique in the molecular glasses containing carbazole and diphenylamino groups reach 10−4 cm2V−1s−1 at an electric field of 106 V cm−1. The ionization potentials measured by electron photoemission method in air are close to those reported for the other organic photoconductors containing electronically isolated carbazole moieties.
M. Daskeviciene, V. Getautis, J. V. Grazulevicius, A. Stanisauskaite, J. Antulis, V. Gaidelis, V. Jankauskas, J. Sidaravicius, "Crosslinkable Carbazolyl-Containing Molecular Glasses for Electrophotography" in Journal of Imaging Science and Technology, 2002, pp 467 - 472, https://doi.org/10.2352/J.ImagingSci.Technol.2002.46.5.art00010