pn-Junctions of MEH-PPV on top of heavily doped n-type silicon were used in
electrical measurements. Through deep-level transient-spectroscopy (DLTS)-
like measurements, four traps (two majority and two minority traps) could b
e identified on top of the shallow acceptor level responsible for conductio
n. Furthermore, evidence is found for interface states. (C) 2000 Published
by Elsevier Science S.A. All rights reserved.