Proceedings of the Korean Vacuum Society Conference (한국진공학회:학술대회논문집)
- 2014.02a
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- Pages.228.2-228.2
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- 2014
Highly Sensitive and Transparent Touch Sensor by a Double Structure of Single Layer Graphene
- Kim, Youngjun (Department of Electronics and Computer Engineering, Hanyang University) ;
- Jung, Hyojin (Department of Electronics and Computer Engineering, Hanyang University) ;
- Jin, Hyungki (Department of Electronics and Computer Engineering, Hanyang University) ;
- Chun, Sungwoo (Department of Electronics and Computer Engineering, Hanyang University) ;
- Park, Wanjun (Department of Electronics and Computer Engineering, Hanyang University)
- Published : 2014.02.10
Abstract
Characteristics of high Fermi velocity, high mechanical strength, and transparency offer tremendous advantages for using graphene as a promising transparent conducting material [1] in electronic devices. Although graphene is a prospective candidate for touch sensor with strong mechanical properties [2] and flexibility, only few investigations have been carried out in the field of sensor as a device form. In this study, we suggest ultra-highly sensitive and transparent graphene touch sensor fabricated by single layer graphenes. One of the graphene layers is formed in the top panel as a disconnected graphene beam transferred on PDMS, and the other of the graphene layer is formed with line-patterning on the bottom panel of triple structure PET/PI/SiO2. The touch sensor shows characteristics of flexible. Its transmittance is approximately 75% where transmittance of the top panel and the bottom panel are 86.3% and 87%, respectively, at 550 nm wavelength. Sheet resistance of each graphene layer is estimated as low as