Active optoelectronics using thin-film organic semiconductors

We review recent results in the emerging area of organic semiconductor mate rials. Light-emitting devices, thin-film transistors and ultrafast photodet ectors are used as examples to show the progress made in our understanding of the fundamental optoelectronic properties of organic thin films, and the ir application to active electronic devices. Also, a perspective of the pot ential of these materials for practical application following 50 years of i ntense research is considered.