Xerographic dark discharge of PVK:TNF photoconductive material

Xerographic dark discharge experiments on corona charged layers of poly N-vinylcarbazole (with different contents of trinitrofluorenone) have been carried out. The surface voltage decreasing against the time can be explained by the help of two mechanisms: the first, observed at the beginning of the...
Ausführliche Beschreibung

Xerographic dark discharge experiments on corona charged layers of poly N-vinylcarbazole (with different contents of trinitrofluorenone) have been carried out. The surface voltage decreasing against the time can be explained by the help of two mechanisms: the first, observed at the beginning of the dark discharge with sufficiently long corona charging times, is the detrapping effect of carriers injected by the corona current flowing through the sample during the charging sequence; the second is a thermal generation of carriers mechanism, previously proposed for capacitor structure-like materials. This thermal generation appearing electric-field-assisted according to a Poole-Frenkel effect. Ausführliche Beschreibung