| 초록 |
We report a new film-casting method for polymer electrodes, thickness-controlled drop-casting (TCDC), using polyaniline doped with camphor sulfonic acid (PANI:CSA). By combining the advantages of conventional spin-casting and drop-casting methods, and by rigorously controlling the film formation parameters, we were able to produce flexible polymer electrodes with high conductivity and excellent transmittance. The PANI:CSA electrodes cast by the TCDC method exhibited constant thickness-independent conductivities of ~ 600 S cm-1 down to a film thickness of 0.2 um, and a high optical transmittance of about 85% at 550 nm. Furthermore, the new casting method significantly reduced the sheet resistance (~ 90 ohm/square) of the PANI:CSA electrodes compared with the conventional spin-cast films, enhancing the performance of the devices deposited on plastic substrates. |
