Charge transfer processes play a fundamental role in all electronic and optoelectronic devices.
For devices based on organic thin-film technology, these include the injection of the charge carriers via the metallic contacts and the charge transport in the organic film itself.
However, such internal interfaces are difficult to access and therefore not yet understood very well.
The team of cfaed research group leader Frank Ortmann (Computational Nanoelectronics Group), together with researchers from Spain, Belgium and Germany, has now shown in a study that the electronic transport mechanism when injected into an organic film can be described by the so-called Marcus hopping model known from physical chemistry.
The model was developed by the American chemist Rudolph Arthur Marcus.
For his important theoretical contributions, R.A. Marcus received the Nobel Prize for Chemistry in 1992 ", says Ortmann.