Self-assembly of Ag nanopowder on OTS-patterned glass |
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Authors: | Jae-hyun Kim Bo-hyun Lee Hansaem Kang Jaeyeal Kim Geesung Chae Inbyeong Kang In-jae Chung |
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Institution: | aR&D 4 Team, LG Display Co., 1007 Deogeun-ri, Wollong-myeon, Paju-si, Gyeonggi-do 413-811, Republic of Korea |
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Abstract: | 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 (μCP) 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 μm on the glass. The patterned Ag line was dense and abrupt on the edge and the thickness was about 0.25 μm. Ag film showed good adhesion on a glass substrate after anneal above 200 °C. The minimum resistivity was about 4 μΩ cm. |
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Keywords: | Self-assembly Nanopowder Solution process Metal line |
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