Selective deposition of graphene sheets on a flexible substrate by a nonuniform electric field

Sooyeoun Oh, Hyunik Park, Younghun Jung, Ji Hyun Kim, Jiwan Kim, Min Suk Oh

Research output: Contribution to journalArticle

3 Citations (Scopus)

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 100kHz frequency AC signal with a peak-to-peak voltage of 10V. 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.

Original languageEnglish
Article number020602
JournalJournal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Volume32
Issue number2
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Graphene
graphene
Electric fields
electric fields
Tensile strain
flakes
Voltage measurement
Electric current measurement
Substrates
electrical measurement
positioning
Optical microscopy
Raman spectroscopy
Polyethylenes
polyethylenes
alternating current
Electric properties
assembly
electrical properties
microscopy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Selective deposition of graphene sheets on a flexible substrate by a nonuniform electric field. / Oh, Sooyeoun; Park, Hyunik; Jung, Younghun; Kim, Ji Hyun; Kim, Jiwan; Suk Oh, Min.

In: Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, Vol. 32, No. 2, 020602, 01.01.2014.

Research output: Contribution to journalArticle

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