TRANSIENT ELECTRON-TRANSPORT IN ORGANIC POLYSILANE CONTAINING ANTHRACENE UNITS

Electron and hole transport in polymethylphenylsilane (PMPS) containin g anthracene units in the polymer backbone (PMPS-AN) have been studied by time-of-flight and electrophotographic measurements. It is found t hat the hole drift mobility of PMPS-AN is slightly decreased because o f the increase in energetic and geometric disorder, and that the elect ron transport, which has not been observed in PMPS, is detected. We su ggest that the electron transport is due to electron hopping in a site percolation cluster formed by the anthracene units. (C) 1998 Elsevier Science B.V. All rights reserved.