DOPING EFFECT IN MEROCYANINE EVAPORATED-FILMS

Doping effect of organic molecules in merocyanine evaporated films are investigated. As organic dopant, tetracyanoquinodimethane and tetrath iafulvalene were employed and the merocyanine films containing organic dopant were fabricated by using a co-evaporation technique. The elect rical properties of Al/MC/Ag Schottky cell were examined by current-vo ltage, thermally stimulated current and capacitance-temperature measur ement. Forward current in TCNQ-doped-MC sample was increased with incr easing concentration of TCNQ. On the contrary, forward current in TTF- doped-MC sample was decreased with increasing TTF concentration.