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Transparent Organic Cells Emit Blue

Photonics Spectra
Nov 2002
European and Canadian researchers reported in the Oct. 21 issue of Applied Physics Letters a new method for the fabrication of light-emitting electrochemical cells for displays. The anode and cathode are made of indium tin oxide, and polyfluorene polymer used for making the diodes causes the emitted light to be blue.

According to Thierry Ouisse of Université Joseph Fourier Grenoble 1 and Centre National de la Recherche Scientifique in France, a unique laminating procedure bonds two polymer layers. Molten salt mixed with the polymer provides the ability to inject electrons and holes from any kind of electrodes.

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