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22/01/1936 American physicist Alan J. Heeger is born

He co-discovered the conductive polymers, organic polymers that conduct electricity. In 1977, Alan J. Heeger, Alan MacDiarmid and Hideki Shirakawa discovered high conductivity in oxidized iodine-doped polyacetylen. The most interesting application of the conductive polymers is the manufacture of organic light-emitting diodes.