Abstract

PEDOT:PSS is a conductive polymer blend which is widely used as a thin functional film in the fabrication of electronic devices. Modification of PEDOT:PSS properties is usually required to enhance their performance which demands further research to gain a complete understanding. This paper is concerned with the optimization of PEDOT:PSS thin films produced by inkjet printing which is deemed as a very promising fabrication technology. Both thermal and solvent annealing were utilized to optimize the ink-jetted PEDOT:PSS thin films. It has been found that thermal annealing is relatively ineffective for the improvement of conductivity and transparency of the thin films. However, solvent annealing is introduced for inkjet printing combined with subsequent thermal annealing has induced a further increase of conductivity in the thin film.

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