By Peter Harrop, Chairman, IDTechEx Europe’s largest event on Printed Electronics, the IDTechEx Printed Electronics Europe 2010 in Dresden, Germany in April, will reflect new trends in the subject such as carbon nanotubes in conductive paper and transistors, printing silicon for enhancing solar cells, for transistors and other uses and printing copper at a fraction of the cost of silver. The first killer application of printed electronics was flexible, light emitting ac electrolumin...