期刊
APPLIED PHYSICS LETTERS
卷 106, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4921524
关键词
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资金
- Basic Science Research Program through National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2013R1A2A2A01069023]
- National Research Foundation of Korea [2013R1A2A2A01069023] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Graphene oxide (GO) nanostructures have been aligned between conducting electrodes via dielectrophoresis (DEP) with different electrical configurations. The arrangement of ground with respect to peak-to-peak voltage (V-pp) plays a crucial role in manipulating the GO nanostructures. Grounds on both sides of the V-pp electrode give an excellent linking of GO nanostructures which is explained by scanning electron microscopy and current-voltage characteristics. A finite element method simulation explains the electric field and voltage variation profile during DEP process. The optimized aligned GO nanostructures are used as hydrogen gas sensor with a sensitivity of 6.0% for 800 ppm hydrogen gas. (C) 2015 AIP Publishing LLC.
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