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Graphene-Based Conformal Devices

Title
Graphene-Based Conformal Devices
Authors
Park, YJ[Park, Yong Ju]Lee, SK[Lee, Seoung-Ki]Kim, MS[Kim, Min-Seok]Kim, H[Kim, Hyunmin]Ahn, JH[Ahn, Jong-Hyun]
DGIST Authors
Kim, H[Kim, Hyunmin]
Issue Date
2014-08
Citation
ACS Nano, 8(8), 7655-7662
Type
Article
Article Type
Article
Keywords
AnimalAnimalsChemistryConformal CoverageConformal DeviceElectric ImpedanceElectrical CharacteristicFuture ApplicationsGrapheneGraphiteImpedanceMechanical ProcessesMechanicsSemiconductorSkinSurface PropertiesSurface PropertyTactile SensorTactile SensorsThin-Film Transistor (TFT)TouchTransistors, ElectronicUltra-ThinUltra-Thin TransistorWearable Electronics
ISSN
1936-0851
Abstract
Despite recent progress in bendable and stretchable thin-film transistors using novel designs and materials, the development of conformal devices remains limited by the insufficient flexibility of devices. Here, we demonstrate the fabrication of graphene-based conformal and stretchable devices such as transistor and tactile sensor on a substrate with a convoluted surface by scaling down the device thickness. The 70 nm thick graphene-based conformal devices displayed a much lower bending stiffness than reported previously. The demonstrated devices provided excellent conformal coverage over an uneven animal hide surface without the need for an adhesive. In addition, the ultrathin graphene devices formed on the three-dimensionally curved animal hide exhibited stable electrical characteristics, even under repetitive bending and twisting. The advanced performance and flexibility demonstrated here show promise for the development and adoption of wearable electronics in a wide range of future applications. © 2014 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/3064
DOI
10.1021/nn503446f
Publisher
American Chemical Society
Related Researcher
Files:
There are no files associated with this item.
Collection:
Companion Diagnostics and Medical Technology Research Group1. Journal Articles


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