Photoconduction in Single Crystals of the Thianthrene-Tetracyanobenzene 1:1 Adduct

Abstract

The photoconduction of single crystal thianthrane—tetracyanobenzene has been measured as a function of excitation wavelength, 200–600 mm, excitation intensity, temperature and applied field. In the 200–325 nm region only electron photocurrents are observed which show a symbatic behaviour; in the 325–340 nm region antibatic photocurrent behavior occurs for holes and electrons; for longer wavelengths both photocurrents are weak with no wavelength dependent structure. The electron mobility was ∼ 3.6 cm²/Vs at 300°K. These results are discussed in terms of the dominate photocarrier generation processes.