In situ determination of the energy dependence of the high-frequency mobility in polymers

Details In situ determination of the energy dependence of the high-frequency mobility in polymers In situ determination of the energy dependence of the high-frequency mobility in polymers

2005-09-06

arxiv.org/abs/cond-mat/0509141v1

Applied Physics Letters 86, 252107 (2005)

Physics

Condensed Matter

Materials Science

3 pages (incl. 3 figures) in Appl. Phys. Lett

Scientific paper

10.1063/1.1952588

The high-frequency mobility in disordered systems is governed by transport properties on mesoscopic length scales, which makes it a sensitive probe for the amount of local order. Here we present a method to measure the energy dependence of the high frequency mobility by combining an electrochemically gated transistor with in-situ quasi-optical measurements in the sub-terahertz domain. We apply this method to poly([2-methoxy-5-(3',7'-dimethylocyloxy)]-p-phenylene vinylene) (OC_1C_10-PPV) and find a mobility at least as high as 0.1 cm^2V^-1s^-1.

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