 Organic and other carbon based semiconductors are materials with weak spin-orbit coupling which makes spin important for electronic transitions that determine the electrical, optical and magnetic properties of these materials. As spin-dependent transport and recombination can determine efficiency limits of organic light emitting diodes and organic solar cells, a thorough qualitative and quantitative knowledge of these effects is crucial for an optimization of these technological applications. We use electrically and optically detected coherent electron spin resonance techniques in order to investigate spin-dependent processes in OLED and organics solar cell materials. Similar as for inorganic materials, the investigation of coherent spin control mechanisms of electric currents may also ultimately lead to organic spin electronics and quantum information devices. |
C. Boehme*, D. R.
McCamey, K. J. van Schooten, W. J. Baker, S.-Y. Lee, S.-Y. Paik, J. M.
Lupton
|
