Roughening of Polyimide Surface for Inkjet Printing by Plasma Etching Using the Polyimide Masked with Polystyrene Nanosphere Array

Title
Roughening of Polyimide Surface for Inkjet Printing by Plasma Etching Using the Polyimide Masked with Polystyrene Nanosphere Array
Authors
안진호
Keywords
Polystyrene Nanosphere; Near-Atmospheric-Pressure Plasma; Surface Roughening; Polyimide; Ink Jet
Issue Date
2015-07
Publisher
AMER SCIENTIFIC PUBLISHERS
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v. 15, no. 10, Page. 8176-8182
Abstract
Two key conditions are required for the application of fine-line inkjet printing onto a flexible substrate such as polyimide (PI): linewidth control during the inkjetting process, and a strong adhesion of the polyimide surface to the ink after the ink solidifies. In this study, the properties of a polyimide surface that was roughened through etching in a He/SF6 plasma, using a polystyrene nanosphere array as the etch mask, were investigated. The near-atmospheric-pressure plasma system of the He/SF6 plasma that was used exhibits two notable properties in this context: similar to an atmospheric-pressure plasma system, it can easily handle inline substrate processing; and, similar to a vacuum system, it can control the process gas environment. Through the use of plasma etching, the polyimide surface masked the 120-nm-diameter polystyrene nanospheres, thereby forming a roughened nanoscale polyimide surface. This surface exhibited not only a greater hydrophobicity with a contact angle of about 150 for water and about 30 for silver ink, indicating better silver linewidth control during the silver inkjetting process but also a stronger adhesion to the silver ink sprayed onto it when compared with the flat polyimide surface.
URI
http://www.ingentaconnect.com/content/asp/jnn/2015/00000015/00000010/art00139http://hdl.handle.net/20.500.11754/26285
ISSN
1533-4880; 1533-4899
DOI
http://dx.doi.org/10.1166/jnn.2015.11285
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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