Abstract
Transient photoconductivity has been used to measure the electron drift mobility in the direction of single-crystal naphtalene from 54 to 324 K. Below 100 K the mobility rises exponentially with decreasing temperature, an effect which we attribute to the onset of band-type motion limited by optical-phonon scattering. This observation allows the identification of the approximately constant mobility at higher temperatures ( K) with the hopping of localized charge carriers.
- Received 26 October 1977
DOI:https://doi.org/10.1103/PhysRevLett.40.197
©1978 American Physical Society