Fabrication of transparent metal mesh electrode by using silver-metal oxide nanoparticles for application to touch screen panel

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Molecular Crystals and Liquid Crystals, ISSN: 1542-1406, Vol: 651, Issue: 1, Page: 163-169

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Gun-Woo Lee; Sang Bo Sim; Lee Soon Park; Su Yong Nam
Informa UK Limited
Chemistry; Materials Science; Physics and Astronomy; Metal grid; metal mesh; silver paste; silver-metal oxide nanopatricle; touch screen panel
article description
In this work core-shell type Ag-metal oxide particles were synthesized by coating of Ag metal on the surface of SiO, ZnO and TiOparticles utilizing alkylamine silver complex as Ag source. The resulting Ag-SiO, Ag-ZnO and Ag-TiOnano particles were used to make Ag-metal oxide paste with the epoxy resin as binder polymer, ethylcarbitol acetate as solvent and polymeric wetting agent as rheological additive. The micron sized trench pattern was fabricated on polyethylene terephthalate(PET) film by UV imprinting method utilizing the mold with embossed trench layer pattern. The nano-sized silver paste was filled into trench layer patterned on PET film by using a screen printer type filling machine. The silver metal mesh transparent conducting electrode touch sensor showed high visible light transmittance(∼90%) and low resitivity of 3.6 × 10Ωcm required in the practical applications.