| 초록 |
Shape-designed polyaniline (PANI) nanomaterials (nanoparticles, nanorods, and nanofibers) are prepared by adjusting the amount of an oxidizing agent and a monomer during chemical oxidation polymerization. The charge-transport properties of the precisely controlled PANI geometries at the nanometer scale were systematically investigated to identify the optimal sensing conditions to detect the nerve gas agent dimethyl methylphosphonate (DMMP). Intrinsically, the aspect ratio of PANI nanomaterials can change with the oxidation state, which is highly related to the doping level and conjugation length. Extrinsically, PANI nanomaterials deposited onto gold-interdigitated microelectrodes are able to form stable conductive channels by minimizing the contact resistance between the microelectrodes and the nanomaterials. |
