| 초록 |
The conductive polymer poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) has been used recently in various organic based semi-conductors in order to improve charge transfer. It has good electrochemical, mechanical properties and appropriate energy level as hole transport layer or transparent electrode. In this research, we demonstrated high conductivity of PEDOT:PSS thin film electrode that was enhanced from 2.4 to 762 S/cm by simple and effective processing protocol via 2-Chloroethanol (2-CE). It is important to understand the modifying mechanism of conductivity which conformational changes through the elimination of PSS chain in the PEDOT and PSS network. As a result, we characterized organic photovoltaic devices using the conducting polymer anodes and found that the 2-CE post-treated electrode resulted high transmittance, low sheet resistance and advanced electrical device performance compared to the commonly used dimethyl sulfoxide (DMSO) additive. |
