Thermal stability of epitaxial graphene electrodes for conductive polymer nanofiber devices
Journal article, 2017

We used large area, monolayer graphene epitaxially grown on SiC (0001) as contact electrodes for polymer nanofiber devices. Our fabrication process, which avoids polymer resist residues on the graphene surface, results in graphene-polyaniline nanofiber devices with Ohmic contacts and electrical conductivity comparable to that of Au-nanofiber devices. We further checked the thermal stability of the graphene contacts to polyaniline devices by annealing up to T = 800 °C, the temperature at which polyaniline nanofibers are carbonized but the graphene electrode remains intact. The thermal stability and Ohmic contact of polymer nanofibers are demonstrated here, which together with the chemical stability and atomic flatness of graphene, make epitaxial graphene on SiC an attractive contact material for future all-carbon electronic devices.

Graphene

Organic electronics

Carbonization

Epitaxial graphene on SiC

Polyaniline nanofibers

Polymer nanofibers

Graphene electrodes

Carbon electronics

Author

Kyung Ho Kim

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Samuel Lara Avila

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Hans He

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

H. Kang

Seoul National University

YungWoo Park

Seoul National University

Sergey Kubatkin

Linköping University

Sergey Kubatkin

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Crystals

2073-4352 (ISSN)

Vol. 7 12 378

Subject Categories

Nano Technology

DOI

10.3390/cryst7120378

More information

Latest update

2/28/2018