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- W2560804539 abstract "SUMMARY Charge carrier transport properties of organic polymers can vary over a wide range. The paper shows that t he electron- and hole mobilities of polymers with pendant photoconductive groups (i.e. carbazole) are on the order of cm IVs. In these materials the flow of electronic charge is maintained by the overlap of the n-orbitals of the pendant molecular groups. The large variation of this short-range interaction, depending on the local configurations encountered in polymer glasses, leads to a large variation of hopping probabilities and, hence, to wide rate-distributio ns. These distributions are reflected in the slow algebraic decay characteristics of the observed photocurrents. The typical time exponentsa (a 5 1) are shown to carry a great deal of physical information, if the dynamical range of the experiments is s ufficieritly larqe. The paper also refers to quasi-conjugated polymers (polysilanes) whose dynamic transport parameters are about 10 times better (faster) as compared to polymers with pendant groups. These new materials open interesting aspects for t he development of new polymeric materials with better t ransport parameters and, hence, shorter ' switching times'. 2" @default.
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- W2560804539 date "1990-01-01" @default.
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- W2560804539 title "STRUCTURE, MECHANISMS AND PROPERTIES" @default.
- W2560804539 hasPublicationYear "1990" @default.
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