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나노 구조 물리 연구단
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Highly Stretchable and Conductive Silver Nanoparticle Embedded Graphene Flake Electrode Prepared by In situ Dual Reduction Reaction

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Title
Highly Stretchable and Conductive Silver Nanoparticle Embedded Graphene Flake Electrode Prepared by In situ Dual Reduction Reaction
Author(s)
Yeoheung Yoon; Khokan Samanta; Hanleem Lee; Keunsik Lee; Anand P. Tiwari; JiHun Lee; Junghee Yang; Hyoyoung Lee
Publication Date
2015-09
Journal
SCIENTIFIC REPORTS, v.5, no., pp.14177 -
Publisher
NATURE PUBLISHING GROUP
Abstract
The emergence of stretchable devices that combine with conductive properties offers new exciting opportunities for wearable applications. Here, a novel, convenient and inexpensive solution process was demonstrated to prepare in situ silver (Ag) or platinum (Pt) nanoparticles (NPs)-embedded rGO hybrid materials using formic acid duality in the presence of AgNO3 or H2 PtCl6 at low temperature. The reduction duality of the formic acid can convert graphene oxide (GO) to rGO and simultaneously deposit the positively charged metal ion to metal NP on rGO while the formic acid itself is converted to a CO2 evolving gas that is eco-friendly. The AgNP-embedded rGO hybrid electrode on an elastomeric substrate exhibited superior stretchable properties including a maximum conductivity of 3012S cm-1 (at 0 % strain) and 322.8S cm-1 (at 35 % strain). Its fabrication process using a printing method is scalable. Surprisingly, the electrode can survive even in continuous stretching cycles. © 2015, Nature Publishing Group. All rights reserved
URI
http://pr.ibs.re.kr/handle/8788114/1908
DOI
10.1038/srep14177
ISSN
2045-2322
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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