PREPARATION OF LB FILMS OF C-60 DOPED POLY(3-ALKYLTHIOPHENE)S AND ELECTRONIC-PROPERTIES OF THEIR SCHOTTKY DIODES

Langmuir-Blodgett (LB) films of two poly(3-alkylthiophene)-arachidic acid-C-60 mixed systems with different alkyl chains were prepared and used as the semiconductor thin layers in model Schottky diodes. It was found that the mixed systems could form stable condensed films at the air-water interface and the monolayers could be transferred with a transfer ratio close to unity onto solid substrates as Y-type LB films using vertical dipping method. Optical measurement and small angle X-ray diffraction patterns prove that the LB films have good layered structure. Rectification effect was observed in the model devices.