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Characteristics of Silver Metal-mesh Electrodes Coated by Carbon Nanotubes  

Kim, Bu-Jong (Dept. of Electronic Systems Engineering, Hanyang University)
Park, Jong-Seol (Dept. of Electronic Systems Engineering, Hanyang University)
Hwang, Young-Jin (Dept. of Electronic Systems Engineering, Hanyang University)
Park, Jin-Seok (Dept. of Electronic Systems Engineering, Hanyang University)
Publication Information
Journal of the Semiconductor & Display Technology / v.14, no.1, 2015 , pp. 55-59 More about this Journal
Abstract
This study demonstrates hybrid-type transparent electrodes for touch screen panels. The hybrid-type electrodes were fabricated by coating carbon nanotubes (CNTs) on metal meshes. To form the metal-meshes, thin films of silver (Ag) were deposited on glass substrates using the sputtering method and then patterned via photolithography to obtain mesh structures whose line width was $10{\mu}m$ and line-to-line spacing was $300{\mu}m$. CNTs were coated on Ag-meshes by using two different methods, such as spray coating and electrophoretic deposition (EPD). For the samples of a Ag-meshes and CNTs-coated Ag-meshes, their surface morphologies, electrical sheet resistances, and visible-range transmittances and reflectances were characterized and compared. The experimental results indicated that the reflectance of Ag-mesh electrodes was substantially reduced by coating of CNTs. Especially, the hybrid electrodes of Ag-meshes with EPD-coated CNTs showed excellent properties such as sheet resistance lower than $20{\Omega}/{\Box}$, transmittance higher than 90 %, and reflectance lower than 8%.
Keywords
Metal-meshes; Carbon nanotubes; Transparent electrodes; electrophoretic deposition; Spray-coating; Reflectance; Transmittance; Sheet resistance;
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Times Cited By KSCI : 1  (Citation Analysis)
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