Applied Surface Science, Vol.255, No.23, 9386-9390, 2009
Self-assembly of Ag nanopowder on OTS-patterned glass
Ag ink was spontaneously patterned on glass substrate by using the surface energy difference of a pre-patterned octadecyltrichlorosilane (OTS) layer. Ag ink was confined into the hydrophilic area, where OTS layer was not formed. OTS layer was selectively transferred by micro-contact printing (mu CP) method and significantly decreased surface energy. As a result, surface of glass substrate was separated as hydrophobic and hydrophilic with and without OTS layer, respectively. Ag line could be successfully patterned with the width of below 10 mu m on the glass. The patterned Ag line was dense and abrupt on the edge and the thickness was about 0.25 mu m. Ag film showed good adhesion on a glass substrate after anneal above 200 degrees C. The minimum resistivity was about 4 mu Omega cm. (C) 2009 Elsevier B. V. All rights reserved.