Arylaldehyde and arylketone hydrazones as a new class of amorphous molecular materials
Abstract
Arylaldehyde and arylketone hydrazones, e.g. 4-diphenylaminobenzaldehyde diphenylhydrazone (DPH), are found to constitute a new class of amorphous molecular materials. They form readily stable amorphous glasses on cooling from the melt. The hole drift mobility of DPH in its glassy state was 2.2 × 10–4 cm2 s–1 V–1 at an electric field of 2.0 × 105 V cm–1 and at 20 °C.