Improving Optoelectrical Properties of PEDOT: PSS by Organic Additive and Acid Treatment

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Abstract

This article demonstrates the change of structural and optical properties of poly (3,4-ethylene dioxythiophene): polystyrene sulfonate (PEDOT: PSS) by organic additive and acid treatment. The addition of sorbitol and maltitol can disperse the micelles of PEDOT: PSS. The mechanism of the bond-breaking reaction was investigated and a model for the bond-breaking reaction is also proposed. Furthermore, multiple formic acid treatments were found to reduce the PSS content of PEDOT: PSS, resulting in an enhancement in conductivity (4.2 × 104 S/m).

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Lien, S. Y., Lin, P. C., Chen, W. R., Liu, C. H., Sze, P. W., Wang, N. F., & Huang, C. J. (2022). Improving Optoelectrical Properties of PEDOT: PSS by Organic Additive and Acid Treatment. Crystals, 12(4). https://doi.org/10.3390/cryst12040537

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