| 초록 |
Highly conductive poly(3,4-ethylenedioxythiophene) (PEDOT) nanorods were fabricated using a reverse (water-in-oil) cylindrical micelle-mediated interfacial polymerization without any templates (e.g., alumina or polymer membranes and mesoporous silica), and applied as chemical sensors for the detection of HCl and NH3 vapors. The diameter of the nanorods was 40±20 nm, and their length was 200±30 nm. The PEDOT nanotubes displayed the conductivity of 72 S cm-1, which was higher than that (~100 S cm-1) for existing PEDOT synthesized using the identical oxidizing agent (FeCl3). The PEDOT nanorod sensors gave a measurable response to NH3 and HCl vapor concentration as low as 10 ppm and 5 ppm, respectively. In addition, the sensors exhibited reversible and reproducible responses. |
