Abstract
Three different types of , prepared by rf glow discharge, chemical vapor deposition, and evaporation, were found to have the same initial mobility of 1 /V s at room temperature and different carrier relaxation times ranging from 200 to 4 ps. The initial mobility of : is thermally activated with a prefactor of 8 /V s. These results give strong support to the existence of a mode of conduction in extended states which is an intrinsic property of .
- Received 2 March 1981
DOI:https://doi.org/10.1103/PhysRevB.23.6816
©1981 American Physical Society