NEGATIVE PHOTOELECTRICAL PROPERTIES OF ADSORPTION LANGMUIR-BLODGETT-FILMS

Negative photoelectrical properties are observed in adsorption Langmui r-Blodgett films consisting of merocyanine dye and brilliant green und er illumination using two lights. These peculiar properties are strong ly dependent on the polarized direction of the two lights and their wa velengths corresponding to the absorption peaks of the two dyes. We ha ve analyzed the photoelectric process between the two dyes, comparing the experimental results and the simulation using the model for photog enerated carriers via trap levels formed between the two dyes. (C) 199 8 Elsevier Science S.A. All rights reserved.