EFFECT OF LIGHT AND TEMPERATURE ON THE ELECTRICAL-RESISTIVITY OF PMMADOPED WITH CHARGE-TRANSFER COMPLEXES

Electrical resistivity measurements were made for pure and doped PMMA films with TCNQ-anthracene, Li-TCNQ charge transfer solid complexes an d a TCNQ-anthracene donor-acceptor system. The effect of concentration of the dopant, temperature, and light on the electrical behavior of t hese films was investigated and is discussed. The ultraviolet and visi ble spectra were also studied. The sensitivity of the PMMA doped films for photoconductivity is discussed on the basis of the conduction mec hanism proposed for the charge transfer interaction in the complex sys tems.