Optically patternable light-emitting devices based on conducting polymers w
ere Fabricated and were characterized. The cathode of the devices is made w
ith a semitransparent-Al film, which enables tu I,photoinduced degradation
of the polymers in air, The optically patternable devices were successfully
made with poly (2-methoxy-5-dodecyloxy-p-phenylene vinylene) (MDOPPV), as
well as with poly (3-dodecylthiophene) (PAT12), However, optical absorption
study indicated that the patterning mechanism of the MDOPPV device is cons
iderably different from that of the PAT12 device.