1992 Volume 31 Issue 3 Pages 400-406
Pressure wave propagation method, which is generally used to measure charge distribution directily in solid insulating materials, was applied to the measurement of the charge distribution in organic photoconductor (OPC). Validity of this technique for studying the electric properties of OPC was demonstrated by following experiments:
(1) The motions of charges in aggregate OPC and layered OPC under the conditions of dc voltage application and light exposure.
(2) Generation and separation of carriers in OPC under dc voltage application and transport of carriers with light exposure in layered OPC.
Consequently, using pressure wave propagation method, the charge distributions in OPC under the conditions of dc voltage application and light exposure were directly and clearly observed. Thus, this technique is reliable and useful for styudying the electric properties of OPC.
