Spectroscopic and spectroelectrochemical analysis of PEDOT:PSS:PVS composite films
발표자
()
초록
내용
In this study, we synthesized ternary polymer composites based on poly(3,4-ethylenedioxythiophene) (PEDOT), poly(styrene sulfonate) (PSS), poly(vinyl sulfonate) (PVS). We focused on the polyanion composition and varied the PSS:PVS molar ratio, while keeping the PEDOT composition constant. We observed that the absorption coefficients increased as the PVS composition increased. In addition, spectroelectrochemical analysis was conducted to see the energy states of the PEDOT:PSS:PVS films under the potential bias. We found that, when 2 V was applied to the composite without PVS, the absorption coefficients at 2000 nm was reduced by 15%. As the PVS ratio increased, the absorption reduced further by ~ 40%. Also, absorption coefficients of these films at 900 nm was increased by 45%, as the PVS ratio increased.