This work studies the effect of PEDOT:PSS on electrical, optical and mechanical properties of ITO glass. Various thickness PEDOT:PSS films are deposited on ITO glass by spin coating. The sheet resistance, transmittance, surface roughness, residual stress, friction, and critical load of the coated specimens are tested in sequence. We find that PEDOT:PSS films not only improve the electric performance but also increase the adhesion of ITO glass. The experimental results show that the PEDOT:PSS film improves the surface roughness and then results in a lower electric resistance. It also increases the adhesion and reduces the residual stress of the ITO films. Furthermore, only 1% transmittance is lost due to the PEDOT:PSS film, showing the potential in the applications of organic photovoltaic cells and light-emitting diodes.

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Silver conductive thin films deposited on glass and polyimide substrates by using ink jet printing are studied in this work. Characterization of the printed thin films and comparison with sputtered films are investigated. The micro texture, residual stress, adhesion, hardness, optical reflectance, and electric resistance of the thin films are discussed. The result shows that the ink jet printing has the possibility to replace sputtering in thin film deposition, especially for the polymer substrates.

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