TY - GEN
T1 - Effect of plasma treated ITO substrate on inkjet printing of conductive ink
AU - Lok, B. K.
AU - Ng, P. Y.
AU - Hu, X.
AU - Low, H. P.
PY - 2006
Y1 - 2006
N2 - In this paper, we investigate the effect to inkjet printing by modifying the surface condition of the substrate by plasma treatment as a possible processing technique to improve the printubility and repeatability of ink-jet printed conductive ink on ITO coated substrate, and to identify the relationship between process parameters and property. Oxygen plasma surface treatment has been found to increase the surface energy of ITO coated substrates used in OLED. Uniform dots and lines were the desired print pattern. Surface energy of the treated film was quantified through the measurements of contact angles using a commercial conductive ink PEDOT-PSS. In addition, surface roughness and morphology of the treated ITO films were investigated to identify their effect on printubility of the polymer. As surface treatment is also known to affect electrical properties of ITO, sheet resistance was studied. Results show that oxygen plasma improved the print quality dramatically and by varying plasma conditions used. Experimental data also showed that surface energy changed with storage time after treatment. Contact angle increased from 13° to 50° after 48 hours.
AB - In this paper, we investigate the effect to inkjet printing by modifying the surface condition of the substrate by plasma treatment as a possible processing technique to improve the printubility and repeatability of ink-jet printed conductive ink on ITO coated substrate, and to identify the relationship between process parameters and property. Oxygen plasma surface treatment has been found to increase the surface energy of ITO coated substrates used in OLED. Uniform dots and lines were the desired print pattern. Surface energy of the treated film was quantified through the measurements of contact angles using a commercial conductive ink PEDOT-PSS. In addition, surface roughness and morphology of the treated ITO films were investigated to identify their effect on printubility of the polymer. As surface treatment is also known to affect electrical properties of ITO, sheet resistance was studied. Results show that oxygen plasma improved the print quality dramatically and by varying plasma conditions used. Experimental data also showed that surface energy changed with storage time after treatment. Contact angle increased from 13° to 50° after 48 hours.
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U2 - 10.1109/EPTC.2006.342708
DO - 10.1109/EPTC.2006.342708
M3 - Conference contribution
AN - SCOPUS:50249160733
SN - 142440665X
SN - 9781424406654
T3 - Proceedings of the Electronic Packaging Technology Conference, EPTC
SP - 154
EP - 160
BT - 2006 8th Electronics Packaging Technology Conference, EPTC
T2 - 2006 8th Electronics Packaging Technology Conference, EPTC
Y2 - 6 December 2006 through 8 December 2006
ER -