Abstract

Conjugated polymers now provide a class of processible, film-forming semiconductors and metals. We have worked on the development of the semiconductor physics of these materials by using them as the active components in a range of semiconductor devices. Polymer light-emitting diodes show particular promise, and I will report recent developments in colour range (red, green and blue), efficiency (above 20 lumen/W for green embers) and operating lifetime [1]. I will also discuss progress made on them application to displays, with integration with active-matrix TFT drive, and with patterned deposition using ink-jet printing techniques.

© 2000 IEEE