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dc.contributor.advisorZhu, Da-Ming, advisoreng
dc.contributor.authorLiu, Yucongeng
dc.date.issued2012-08-27eng
dc.date.submitted2012 Summereng
dc.descriptionTitle from PDF of title page, viewed on August 27, 2012eng
dc.descriptionThesis advisor: Da-Ming Zhueng
dc.descriptionVitaeng
dc.descriptionIncludes bibliographic references (p. 73-74)eng
dc.descriptionThesis (M.S.)--Dept. of Physics. University of Missouri--Kansas City, 2012eng
dc.description.abstractTwo kinds of heterogeneous materials, block copolymer films and Nafion membranes, are studied by using current sensing atomic force microscopy (CSAFM). In the calculated results, correlation between surface morphology and surface conductance images is obtained using CSAFM, and the implication of the surface conductance and its variations is analyzed. It is found that if the diameter of the CSAFM probe tip is much smaller than the correlation length of the surface morphological features, the current sensing image obtained using the probe has little correlation with the surface morphology, and the current sensed by CSAFM indeed reflects the variation of local resistivity on the sample surface. In experimental results, the microphase separation of block copolymer and the current passing through the ion channel in Nafion membranes are observed by CSAFM. This demonstrates that CSAFM is a powerful and important tool for studying heterogeneous materials.eng
dc.description.tableofcontentsIntroduction -- Experimental set-up -- Results and discussioneng
dc.format.extentxiii, 75 pageseng
dc.identifier.urihttp://hdl.handle.net/10355/14950eng
dc.publisherUniversity of Missouri--Kansas Cityeng
dc.subject.lcshBlock copolymerseng
dc.subject.lcshFluoropolymerseng
dc.subject.lcshAtomic force microscopyeng
dc.subject.lcshInhomogeneous materialseng
dc.subject.otherThesis -- University of Missouri--Kansas City -- Physicseng
dc.titleUsing current sensing atomic force microscopy to study heterogeneous materialseng
dc.typeThesiseng
thesis.degree.disciplinePhysics (UMKC)eng
thesis.degree.grantorUniversity of Missouri--Kansas Cityeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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