Aniline-based bis(enamines) as new amorphous molecular charge transport materials

A series of new aniline-based bis(enamines) has been synthesized. The full characterization of their structure is presented. The thermal, optical and photoelectrical properties of the newly synthesized enamines are discussed. The reported compounds constitute materials with high thermal stability with 5% weight loss temperatures exceeding 390 °C as characterised by thermogravimetric analysis. They form glasses with the glass transition temperatures ranging from 135 to 154 °C as established by differential scanning calorimetry. Photoelectric properties of the materials were examined by electron photoemission and time of flight technique. The electron photoemission spectra of the layers revealed the ionization potentials of 5.12–5.70 eV. Room temperature hole drift mobility of one newly synthesized derivative molecularly doped in bisphenol Z polycarbonate reached 10−5 cm2 V−1 s−1 at high electric fields.