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In situ determination of the energy dependence of the high-frequency mobility in polymers
Author(s) -
Iulian N. Hulea,
А. В. Пронин,
H. B. Brom
Publication year - 2005
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.1952588
Subject(s) - mesoscopic physics , materials science , transistor , in situ , electron mobility , polymer , terahertz radiation , frequency dependence , phenylene , frequency domain , optoelectronics , analytical chemistry (journal) , condensed matter physics , physics , chemistry , nuclear magnetic resonance , quantum mechanics , voltage , chromatography , meteorology , composite material , mathematical analysis , mathematics
The high-frequency mobility in disordered systems is governed by transportproperties on mesoscopic length scales, which makes it a sensitive probe forthe amount of local order. Here we present a method to measure the energydependence of the high frequency mobility by combining an electrochemicallygated transistor with in-situ quasi-optical measurements in the sub-terahertzdomain. We apply this method topoly([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.Comment: 3 pages (incl. 3 figures) in Appl. Phys. Let

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