Gh. Gelinck et al., RADIATION-INDUCED CONDUCTIVITY IN POLY(PHENYLENE VINYLENE) DERIVATIVES, Journal of radioanalytical and nuclear chemistry, 232(1-2), 1998, pp. 115-119
Using the pulse-radiolysis time-resolved microwave conductivity techni
que the mobility and decay kinetics of radiation-induced charge carrie
rs is studied in a series of poly(2,5-dialkoxy-phenylene vinylene) der
ivatives. The lower limit to the sum of the mobilities of the positive
and negative charge carriers, Sigma mu(min), depends strongly on the
alkoxy functionalization and ranges from 1.2.10(-7) to 1.4.10(-6) m(2)
/V.s at room temperature. Sigma mu(min) increases with the degree of o
rder in the material. The after-pulse conductivity decay kinetics are
disperse and are controlled by a combination of charge recombination a
nd trapping.