Mobility enhancement through homogeneous nematic alignment of a liquid-crystalline polyfluorene

Mobility enhancement through homogeneous nematic alignment of a liquid-crystalline polyfluorene

Homogeneous alignment of poly(9,9′-dioctylfluorene) films on rubbed polyimide results in a more than one order of magnitude increase in time-of-flight hole mobility normal to the alignment direction. We find μ=8.5±1×10−3 cm2/V s at an electric field of E=104 V/cm. Hole transport is found to be nondi...

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Veröffentlicht in:Applied physics letters 1999-03, Vol.74 (10), p.1400-1402
Hauptverfasser: Redecker, M., Bradley, D. D. C., Inbasekaran, M., Woo, E. P.
Format: Artikel
Sprache:eng
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Zusammenfassung:Homogeneous alignment of poly(9,9′-dioctylfluorene) films on rubbed polyimide results in a more than one order of magnitude increase in time-of-flight hole mobility normal to the alignment direction. We find μ=8.5±1×10−3 cm2/V s at an electric field of E=104 V/cm. Hole transport is found to be nondispersive, indicating a low degree of energetic disorder.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.123563