An Introduction to LEPs
Light Emitting Polymers are man-made plastics that emit light (fluoresce) when a current is passed through them.
LEPs where discovered by chance in 1990 by researchers at Cambridge University who were trying to make make semi-conducting polymers that might replace expensive single crystal silicon¹. A thin layer of PPV [poly(phenylene vinylene), see figure 1] was applied over [a large area cathode]. When a potential difference was applied across the film not only did it carry a charge, but it glowed with a low-intensity green-yellow light.
Soon afterward, Cambridge Display Technology Ltd. was founded with funding from Cambridge University with the goal of studying and eventually marketing LEP technology. CDT has patented some of the technology and continue to develop it further with the end goal of applying it as a mass-market display technology.
¹ Burroughes, JH et al. ; Nature, 347, 539-541
Learn More about LEPs
Below is the site's contents, before exploring may I recommend you read the LEP acronym page to familiarise yourself with the terms:
To continue, go to The Applications of LEPs..
last updated: 19-Jun-2002