United States Patent Number: 6,878,974 B2, April 12, 2005, pages 1-11. Also available from the United States Patent and Trademark Office. Website: http://www.uspto.gov.
Visible light LEDs are produced having a layer of conjugated polymer which is cast directly from solution or formed as a gel-processed admixture with a carrier polymer. The LEDs can be formed so as to emit polarized light.
Electrical and Computer Engineering