Fully laser-patterned stretchable microsupercapacitors integrated with soft electronic circuit components

Title
Fully laser-patterned stretchable microsupercapacitors integrated with soft electronic circuit components
Authors
박상백이협김영진Pooi See Lee
Issue Date
2018-10
Publisher
NPG Asia Materials
Citation
VOL 10, 959
Abstract
Stretchable energy storage devices are prerequisites for the realization of autonomous elastomeric electronics. Microsupercapacitors (MSCs) are promising candidates for this purpose due to their high power and energy densities, potential for miniaturization, and feasibility of embedding in circuits; however, efforts to realize stretchable MSCs have mostly relied on strain-accommodating materials and have suffered from limited stretchability, low conductivity, or complicated patterning processes. Here, we designed and fabricated a stretchable MSC based on reduced-grapheneoxide/Au heterostructures patterned by facile and versatile direct laser patterning. An interconnected and stable 3D network composed of vertically oriented heterostructures was realized by high-repetition-rate femtosecond laser pulses. Upon transferring to polydimethylsiloxane (PDMS), the 3D network achieved a high conductivity of similar to 10(5) S m(-1), and the conductivity could be maintained at similar to 10(4) S m(-1) even at 50% strain. A fully laser-patterned stretchable electronics system was integrated with embedded MSCs, which will find applications in soft robotics, wearable electronics, and the Internet of Things.
URI
http://pubs.kist.re.kr/handle/201004/71255
ISSN
1884-4049
Appears in Collections:
KIST Publication > Article
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