Selective deposition of graphene sheets on a flexible substrate by a nonuniform electric field
- Authors
- Oh, Sooyeoun; Park, Hyunik; Jung, Younghun; Kim, Jihyun; Kim, Jiwan; Oh, Min Suk
- Issue Date
- 3월-2014
- Publisher
- A V S AMER INST PHYSICS
- Citation
- JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, v.32, no.2
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
- Volume
- 32
- Number
- 2
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/99218
- DOI
- 10.1116/1.4862536
- ISSN
- 1071-1023
- Abstract
- This study reports on the precise positioning of high-quality graphene sheets on a flexible polyethylene naphthalate substrate using a dielectrophoretic (DEP) force. Positive DEP assembly is carried out using a 100 kHz frequency AC signal with a peak-to-peak voltage of 10 V. The presence and quality of the graphene flakes aligned around the prepatterned electrodes are characterized by scanning electron microscopy, optical microscopy, and micro-Raman spectroscopy. Current-voltage measurements were also used to evaluate the electrical properties of these flexible devices under varying compressive (-) and tensile (+) strain conditions up to +/- 0.6%, where the currents decreased with increasing strains. (C) 2014 American Vacuum Society.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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