Author/Authors :
Müller، نويسنده , , David and Gross، نويسنده , , Markus and Meerholz، نويسنده , , Klaus and Braig، نويسنده , , Thomas and Bayerl، نويسنده , , Michael S and Bielefeldt، نويسنده , , Florian and Nuyken، نويسنده , , Oskar، نويسنده ,
Abstract :
Thin films of a cross-linkable hole-conducting monomeric triarylamine were investigated. The rate of photocross-linking and the overall polymerization yield were measured using real-time FT-IR spectroscopy. The electrical properties were characterized in a typical diode configuration using indium tin oxide and aluminum as the contacts. The current passed through the devices was found to be limited by the injection of holes into the semi-conducting polymer layer by tunneling. Cross-linked layers withstood about 20 times higher currents than non-cross-linked layers before dielectric breakdown occurred.
Keywords :
Organic light emitting diodes , Cross-linking , Polymer networks , Hole transport
