Abstract

Hole drift mobilities have been measured in films of solid solutions of trans-1,2-bis (9H-carbazole-9-yl) cyclobutane (DCZB) in various polymer binders. The hole drift mobilities differ by more than two orders of magnitude depending on the polymer binder used. In poly (methacrylates) films the hole drift mobility is large and the temperature dependence is small when the glass transition temperature of pure polymer is about 50 °C. The difference in rotational mobility of DCZB molecules is considered as the origin of this binder and temperature dependence on the hole mobility.

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