Journal
NANOTECHNOLOGY
Volume 22, Issue 35, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/22/35/355709
Keywords
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Funding
- NRF [201100003909]
- Converging Research Center [2010k001138]
- MEST [2011-00240]
- Happy Tech. [20100020821]
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We report a simple but efficient method to prepare metallic nanowire-graphene (MN-G) hybrid nanostructures at a low temperature and show its application to the fabrication of flexible field emission devices. In this method, a graphene layer was transferred onto an anodic alumina oxide template, and vertically aligned Au nanowires were grown on the graphene surface via electrodeposition method. As a proof of concept, we demonstrated the fabrication of flexible field emission devices, where the MN-G hybrid nanostructures and another graphene layer on PDMS substrates were utilized as a cathode and an anode for highly flexible devices, respectively. Our field emission device exhibited stable and high field emission currents even when bent down to the radius of curvature of 25 mm. This MN-G hybrid nanostructure should prove tremendous flexibility for various applications such as bio-chemical sensors, field emission devices, pressure sensors and battery electrodes.
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