Polymers can behave like insulators, semiconductors and metals – as well as semimetals. Twenty researchers, under the leadership of Xavier Crispin, Docent in organic electronics at Linköping University, are behind the breakthrough published in Nature Materials. Photo: Ida Ling Flanagan
Read: Polymers Can Be Semimetals 
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A thermoelectric material undergoes a diffusion of electronic charge carriers to the cold region when the material is submitted to a temperature gradient. As a result an electric potential is created between the cold and hot side of the material...