2006 Volume 45 Issue 6 Pages 521-525
We have developed new electron transport materials, which have the structure of naphthalene-tetracarboxylic diimide. These compounds showed good compatibility to a polycarbonate and good solubility in common organic solvents. Electron transport properties of these compounds were investigated by the conventional time-of-flight method. Electron drift mobilities have been measured as a function of the concentration and electric field. The values of electron mobility ranged from 10-8 to 10-4cm2/Vs as the molecular concentration was varied from 20 to 60wt%. These mobilities are comparable to hole mobility of triphenylamine derivative, TPD.
