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Abstract
A smectogenic 1,3-bis(4-decyloxyphenyl)-3H-imidazol-1-ium trifluoromethane sulfonates (1) was studied on the drift mobility of carriers by a Time-Of-Flight (TOF) technique. The transient photocurrent decay curves were clearly observed for the positive electrode illumination and the transit times could be detected to indicate the mobility in the smectic A (SmA) phase is on the order of 10−3 cm2 V−1 s−1. This carrier mobility is too fast if it is a reflection of ionic transport in this system and is more easily explained on the basis of electronic charge hopping process.
This work in part was in part carried out by the financial support from Ministry of Education, Culture, Sports, Science and Technology (Grant-in-aid:Super-Hierarchical Structure).