Charge decay and relaxation times in electrets

Abstract

In the present communication, the decay of surface charge density of bees wax and the role of a variety of relaxation times in describing the nature of charge carriers have been studied in

detail. Thermo-electrets of bees wax were prepared under different conditions of polarizing field, temperature and time. The results of present investigations show that a single line does not fit the complete exponential decay of the surface charge. The values of decay constants range from 2.0×10² sec to 1.3×10⁷ sec. Due to the presence of a large number of dipoles and ions of different kinds in bees wax, a number of dipole relaxation frequencies are expected.