Selective Laser Direct Patterning of Silver Nanowire Percolation Network Transparent Conductor for Capacitive Touch Panel

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We introduce a facile method to enhance the functionality of a patterned metallic transparent conductor through selective laser ablation of metal nanowire percolation network. By scanning focused nanosecond pulsed laser on silver nanowire percolation network, silver nanowires are selectively ablated and patterned without using any conventional chemical etching or photolithography steps. Various arbitrary patterns of silver nanowire transparent conductors are readily created on the percolation network by changing various laser parameters such as repetition rate and power. The macroscopic optical and electrical properties of the percolation network transparent conductor can be easily tuned by changing the conductor pattern design via digital selective laser ablation. Further investigation on the silver nanowire based electrode line prepared by the ablation process substantiates that the general relation for a conducting thin film fails at a narrow width, which should be considered for the applications that requires a high resolution patterns. Finally, as a proof of concept, a capacitive touch sensor with diamond patterns has been demonstrated by selective laser ablation of metal nanowire percolation network.
Publisher
AMER SCIENTIFIC PUBLISHERS
Issue Date
2015-03
Language
English
Article Type
Article
Keywords

METAL-ELECTRODE; FILMS; LONG; DEPOSITION; POLYMER

Citation

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.15, no.3, pp.2317 - 2323

ISSN
1533-4880
DOI
10.1166/jnn.2015.9493
URI
http://hdl.handle.net/10203/192576
Appears in Collection
ME-Journal Papers(저널논문)
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