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Fabrication of a Flexible and Transparent Touch Sensor Using Single-Walled Carbon Nanotube Thin-Films

Title
Fabrication of a Flexible and Transparent Touch Sensor Using Single-Walled Carbon Nanotube Thin-Films
Author
이승백
Keywords
Carbon Nanotubes; Thin films; Touch Sensor; Flexible; Transparent
Issue Date
2011-06
Publisher
American Scientific Publishers
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, JUL 2011, 11(7), p5845-p5849, 5p.
Abstract
Reported herein are the fabrication and demonstration of a flexible and transparent touch sensor using carbon nanotube thin films (CNTFs). The CNTF was fabricated by vacuum filtration and was transferred CNTF to polydimethylsiloxane (PDMS) by water-assisted stamping method. The sheet resistance of the CNTF decreased by similar to 74% after HNO(3) treatment. The CNTF touch sensor was fabricated similarly to the conventional four-wire touch screen structures. PDMS was used for the upper plate to absorb the tensile and compressive strain and polyethylene terephthalate (PET) for the lower plate to provide device stability during bending action. The CNTF touch sensor showed high optical transmittance (over 80%) and high sensitivity with the measured touch activation pressure of 23 kPa. Cyclic pressure (38 kPa) was applied at 0.5 Hz and good repeatability was found for several hundred cycles. The results show that the CNTF flexible touch sensor can be applied to future flexible electronic interfaces such as, e-paper and flexible displays.
URI
http://www.ingentaconnect.com/content/asp/jnn/2011/00000011/00000007/art00043#http://repository.hanyang.ac.kr/handle/20.500.11754/72863
ISSN
1533-4880
DOI
10.1166/jnn.2011.4450
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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