RECTIFYING PROPERTIES OF BILAYERED DOPED POLY(VINYL ALCOHOL)

Current-voltage characteristics of a bilayered structure of acridine o range doped poly(vinyl alcohol) and crystal violet doped poly(vinyl al cohol) have been investigated. Current-voltage characteristics exhibit the rectifying property of the bilayered structures. The best rectify ing characteristics have been found for a doping concentration of 5% w eight of dyes. In the high voltage range, the I-V characteristics are linear in the forward and reverse directions with I-F/I-R congruent to 14. A complex tunnelling mechanism is thought to be operating in the presence of traps and interface states.