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Vol. 25 No. 2 (2013): Vol 25 Issue 2

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Investigation of the Effects of Alkaline Treatment on the Properties of Poly(3,4-ethylenedioxythiophene):Poly(4-styrenesulfonate) Films

https://doi.org/10.14233/ajchem.2013.13569
Jiao Li
School of Materials Science and Engineering, Shandong University of Technology, Zibo 255049, Shandong Province, P.R. China
Hua Zhang
School of Materials Science and Engineering, Shandong University of Technology, Zibo 255049, Shandong Province, P.R. China
Juncheng Liu
School of Materials Science and Engineering, Shandong University of Technology, Zibo 255049, Shandong Province, P.R. China
Hui Qi
School of Materials Science and Engineering, Shandong University of Technology, Zibo 255049, Shandong Province, P.R. China

Corresponding Author(s) : Jiao Li

zbjli2012@163.com

Asian Journal of Chemistry, Vol. 25 No. 2 (2013): Vol 25 Issue 2

Abstract

In this article, the influence of sodium hydroxide treatment on the properties of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) films has been investigated. We have also examined the performance of organic solar cells with the un-doped and NaOH-doped PEDOT:PSS layer. Results show that the acidity of PEDOT:PSS solution can be remarkably reduced by adding the NaOH solution with the optimal doping concentration (£ 0.43 wt %), while the NaOH-doped PEDOT:PSS film shows an improved optical transmission and unchanged conductivity. However, compared with the pristine organic solar cell without adding NaOH to the whole-extraction layer, the NaOH-doped organic solar cell shows a slightly degraded in the power conversion efficiency (from 2.12 to 2.01 %), which has been attributed to the decreased Voc and fill factor of the devices after the addition of NaOH.

Keywords

Sodium hydroxide Property Poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) film Organic solar cells
Li, J., Zhang, H., Liu, J., & Qi, H. (2012). Investigation of the Effects of Alkaline Treatment on the Properties of Poly(3,4-ethylenedioxythiophene):Poly(4-styrenesulfonate) Films. Asian Journal of Chemistry, 25(2), 1107–1110. https://doi.org/10.14233/ajchem.2013.13569
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