Deformable single wall carbon nanotube electrode for transparent tactile touch screen

K. Kim, K. Shin, J. H. Han, K. R. Lee, W. H. Kim, K. B. Park, B. K. Ju, J. J. Pak

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

With a patterned transparent electrode and compressive-elastic gel material, a multi-input transparent touch screen, which detects touch location and touch force, has been realised. The input device of this touch screen is composed of a flexible upper single wall carbon nanotube electrode (SWCNT), a lower indium tin oxide electrode layer, and a silicone gel layer between two electrodes. When a touch force ranging from 0 N to 5 N was applied to the surface of the upper electrode film, the silicone gel was compressed to change the distance between the two electrodes, which resulted in a capacitance change ranging from 1.92 to 3.42pF. The SWCNT electrode on the polyethylene terephthalate showed sufficient flexibility and robustness for mechanical deformation.

Original languageEnglish
Pages (from-to)118-120
Number of pages3
JournalElectronics Letters
Volume47
Issue number2
DOIs
Publication statusPublished - 2011 Jan 20

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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