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Publication Citation: Subsurface Characterization of Carbon Nanotubes in Polymer Composites via Quantitative Electric Force Microscopy

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Author(s): Minhua Zhao; Xiaohong X. Gu; Sharon E. Lowther; Cheol Park; Jerry Jean; Tinh T. Nguyen;
Title: Subsurface Characterization of Carbon Nanotubes in Polymer Composites via Quantitative Electric Force Microscopy
Published: February 03, 2010
Abstract: In this study, quantitative Electric Force Microscopy (EFM) characterization of CNTs dispersed in free-standing polymer composite films is pursued. The effect of experimental parameters including humidity conditions, EFM probe geometry, tip-sample distance, and bias voltage on the EFM contrast is studied. A new mechanism for subsurface EFM contrast of CNTs is proposed based on the experimental findings. We anticipate that quantitative EFM technique will be a powerful tool for subsurface characterization of high dielectric nanostructures in low dielectric materials, with a broad range of applications in nanotechnology.
Citation: Nanotechnology
Volume: 21
Issue: 225702
Pages: 9 pp.
Keywords: Electric Force Microscopy; EFM; SPM; subsurface; carbon nanotube; CNT; polymer composites
Research Areas: Characterization, Nanometrology, and Nanoscale Measurements, Materials Science