Details

Autor(en) / Beteiligte

• Yun, Yong Ju
• Ju, Jongil
• Lee, Joong Hoon
• Moon, Sung‐Hwan
• Park, Soon‐Jung
• Kim, Young Heon
• Hong, Won G.
• Ha, Dong Han
• Jang, Heeyeong
• Lee, Geon Hui
• Chung, Hyung‐Min
• Choi, Jonghyun
• Nam, Sung Woo
• Lee, Sang‐Hoon
• Jun, Yongseok

Titel

Highly Elastic Graphene‐Based Electronics Toward Electronic Skin

Ist Teil von

• Advanced functional materials, 2017-09, Vol.27 (33), p.n/a

Ort / Verlag

Hoboken: Wiley Subscription Services, Inc

Erscheinungsjahr

2017

Quelle

Wiley Online Library Journals Frontfile Complete

Beschreibungen/Notizen

• Epidermal electronics are extensively explored as an important platform for future biomedical engineering. Epidermal devices are typically fabricated using high‐cost methods employing complex vacuum microfabrication processes, limiting their widespread potential in wearable electronics. Here, a low‐cost, solution‐based approach using electroconductive reduced graphene oxide (RGO) sheets on elastic and porous poly(dimethylsiloxane) (PDMS) thin films for multifunctional, high‐performance, graphene‐based epidermal bioelectrodes and strain sensors is presented. These devices are fabricated employing simple coatings and direct patterning without using any complicated microfabrication processes. The graphene bioelectrodes show a superior stretchability (up to 150% strain), with mechanical durability up to 5000 cycles of stretching and releasing, and low sheet resistance (1.5 kΩ per square), and the graphene strain sensors exhibit a high sensitivity (a gauge factor of 7 to 173) with a wide sensing range (up to 40% strain). Fully functional applications of dry bioelectrodes in monitoring human electrophysiological signals (i.e., electrocardiogram, electroencephalography, and electromyogram) and highly sensitive strain sensors for precise detection of large‐scale human motions are demonstrated. It is believed that our unique processing capability and multifunctional device platform based on RGO/porous PDMS will pave the way for low‐cost processing and integration of 2D materials for future wearable electronic skin. A solution‐based approach using electroconductive reduced graphene oxide sheets on elastic and porous PDMS thin films for multifunctional, high‐performance, graphene‐based epidermal bioelectrode/strain sensors is presented. Fully functional applications of bioelectrodes in monitoring electrophysiological signals using human and strain sensors for precisely detecting large‐scale human motions are demonstrated.