抄録
Carrier transport of 2,3,6,7,10,11-hexahexyloxytriphenylene (HHOTP) in the discotic phase and the effects of C60 doping have been studied by a time of flight method. C60 is well known to capture electrons effectively. Relatively high mobility of positive carriers insensitive to temperature and also C60 doping are interpreted to be hole mobility. Small and temperature dependent mobility (with activation energy of 0.3 eV) of negative carriers which are influenced slightly by C60 doping is interpreted to be that of ionic carriers.