Author/Authors :
Inganنs، نويسنده , , O. and Berggren، نويسنده , , M. and Andersson، نويسنده , , M.R. and Gustafsson، نويسنده , , G. and Hjertberg، نويسنده , , T. and Wennerstrِm، نويسنده , , O. and Dyreklev، نويسنده , , P. and Granstrِm، نويسنده , , M.، نويسنده ,
Abstract :
We can control the bandgap of thiophene polymers over 2 eV by choosing the nature, position and regularity of side chain substitutions. Electroluminescence from these polymers cover the full visible spectrum, from the blue into the near infra-red. Blends of these polymer materials allow us to construct voltage controlled variable colour light sources. A newly developed transfer technique allow us to mount thin oriented films of the polymers in polymer LEDs to obtain polarised light sources giving polarisation anisotropyʹs of up to 3. Sub-λ light sources have been constructed from these polymer materials using nanometer polymer electrodes.
