Graphene-based stretchable/wearable self-powered touch sensor

Yongjun Lee, Jejung Kim, Bongkyun Jang, Seokhyun Kim, Bhupendra K. Sharma, Jae Hyun Kim, Jong Hyun Ahn

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Wearable electronic devices have become familiar to people and have been expanded to various functions via development in the field of the flexible and stretchable electronic devices. These wearable devices, such as displays, motion sensors, electromyography sensors, and electrocardiogram sensors, require input and power systems to command information and supply energy, respectively. The triboelectric nanogenerator (TENG) has attracted attention as an eco-friendly device that provides sustainable power without an external power supply. Here, we report a self-powered stretchable TENG (S-TENG) touch sensor suitable for a wearable device that adapts to the skin's motion because of its stretchability. The S-TENG with a single-electrode structure was fabricated using atomically thin graphene (<1 nm), polyethylene terephthalate (∼5 μm), and polydimethylsiloxane (∼5 μm) as the electrode, substrate, and electrification layer, respectively. The stretchability was realized through an auxetic mesh design, which helps to obtain stable mechanical and electrical properties while stretching. The S-TENG touch sensor not only senses the touch point but can also perform improved extended functions such as detection of touch sliding velocity and information input through the trajectory mode. The developed S-TENG touch sensor showed good potential for future wearable input applications and is capable of long-term performance without an energy supply.

Original languageEnglish
Pages (from-to)259-267
Number of pages9
JournalNano Energy
Volume62
DOIs
Publication statusPublished - 2019 Aug

Fingerprint

Graphite
Graphene
Sensors
Electromyography
Electrodes
Polyethylene Terephthalates
Polydimethylsiloxane
Electrocardiography
Polyethylene terephthalates
Stretching
Skin
Electric properties
Display devices
Trajectories
Mechanical properties
Substrates

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this

Lee, Y., Kim, J., Jang, B., Kim, S., Sharma, B. K., Kim, J. H., & Ahn, J. H. (2019). Graphene-based stretchable/wearable self-powered touch sensor. Nano Energy, 62, 259-267. https://doi.org/10.1016/j.nanoen.2019.05.039
Lee, Yongjun ; Kim, Jejung ; Jang, Bongkyun ; Kim, Seokhyun ; Sharma, Bhupendra K. ; Kim, Jae Hyun ; Ahn, Jong Hyun. / Graphene-based stretchable/wearable self-powered touch sensor. In: Nano Energy. 2019 ; Vol. 62. pp. 259-267.
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Lee, Y, Kim, J, Jang, B, Kim, S, Sharma, BK, Kim, JH & Ahn, JH 2019, 'Graphene-based stretchable/wearable self-powered touch sensor', Nano Energy, vol. 62, pp. 259-267. https://doi.org/10.1016/j.nanoen.2019.05.039

Graphene-based stretchable/wearable self-powered touch sensor. / Lee, Yongjun; Kim, Jejung; Jang, Bongkyun; Kim, Seokhyun; Sharma, Bhupendra K.; Kim, Jae Hyun; Ahn, Jong Hyun.

In: Nano Energy, Vol. 62, 08.2019, p. 259-267.

Research output: Contribution to journalArticle

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Lee Y, Kim J, Jang B, Kim S, Sharma BK, Kim JH et al. Graphene-based stretchable/wearable self-powered touch sensor. Nano Energy. 2019 Aug;62:259-267. https://doi.org/10.1016/j.nanoen.2019.05.039