M. Redecker et al., Mobility enhancement through homogeneous nematic alignment of a liquid-crystalline polyfluorene, APPL PHYS L, 74(10), 1999, pp. 1400-1402
Homogeneous alignment of poly(9,9 '-dioctylfluorene) films on rubbed polyim
ide results in a more than one order of magnitude increase in time-of-fligh
t hole mobility normal to the alignment direction. We find mu = 8.5+/-1 x 1
0(-3) cm(2)/V s at an electric field of E = 10(4) V/cm. Hole transport is f
ound to be nondispersive, indicating a low degree of energetic disorder. (C
) 1999 American Institute of Physics. [S0003-6951(99)04210-2].