Percolative metal-insulator transition in UV excimer laser irradiated polyimide

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dc.contributor.advisorSauerbrey, Roland A.
dc.creatorBall, Zane Andrew
dc.date.accessioned2009-06-04T00:19:11Z
dc.date.available2009-06-04T00:19:11Z
dc.date.issued1994
dc.description.abstractThe metal-insulator transition observed in krypton-fluoride laser irradiated polyimide is used as a method to study the three dimensional percolation theory of random resistor networks. Values for the percolation threshold and conductivity critical exponent were measured and found to be 0.31 $\pm$ 0.06 for the percolation threshold of a three dimensional continuum of interpenetrating spheres and 2.05 $\pm$ 0.05 for the critical exponent. Both values are in excellent agreement with theoretical predictions. The metal-insulator transition was observed to have a nonlinear current voltage characteristic near the percolation threshold when a small applied voltage was used for measurement. Under these conditions the conductivity critical exponent was measured and found to be 2.7 $\pm$ 0.4. The nonlinear case corresponds to theories for nonlinear random resistor networks and is the first experimental demonstration of the effect of nonlinear conduction on the critical exponent. The value is in agreement with theoretical calculations.
dc.format.extent100 p.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.callnoTHESIS E.E. 1994 BALL
dc.identifier.citationBall, Zane Andrew. "Percolative metal-insulator transition in UV excimer laser irradiated polyimide." (1994) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/13809">https://hdl.handle.net/1911/13809</a>.
dc.identifier.urihttps://hdl.handle.net/1911/13809
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectElectronics
dc.subjectElectrical engineering
dc.titlePercolative metal-insulator transition in UV excimer laser irradiated polyimide
dc.typeThesis
dc.type.materialText
thesis.degree.departmentElectrical Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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