| 초록 |
Conductive polymer nano-films (polypyrrole, polyfuran, polythiophene and its derivative, etc.) were formed chemically by vapor deposition polymerization (VDP) method. An interesting feature of this chemical synthesis is that compact ultra thin conductive films of 10-60 nm thickness doped with dopant are obtained by a simple technique. We obtained also a selective nano-layer deposition of conductive polymers of 1-3 micrometer line/space pattern by micro contact printing method. Micro contact printing can be done to prepare patterned monolayers or nano layers of organic materials. Assessment of the surface of the films was found from the analysis of the morphological structure by atomic force microscopy. The surface resistance of conductive films more than 60 nm thick was enhanced up to 1000 W/square, and the light-transmittance was increased up to 95 % in case of a film less than 40 nm thick. The electronic structures and chemical defects (charged domains) dispersed in polymer chains of conductive nano-films are observed from the electronic absorption, ATR and Raman scattering spectroscopy. These nano-films of conductive polymer prepared by VDP method exhibited excellent electro-conductive and optical properties that are sufficient to be applied to organic opto-electronic films for FPDs. |
