All Physics Faculty Presentations
Title
Electric-Field-Induced Hopping Conductivity in Polymers
Document Type
Conference Paper
Journal/Book Title/Conference
Bulletin of the American Physical Society
Volume
52
Publication Date
2007
Abstract
The resistivity of highly insulating polymers exhibits a dependence on electric field strength. Mott and Davis as well as Poole and Frankle describe theoretically the resistivity of disordered semiconductors, when subject to a changing electric field, in terms of hopping conductivity models. Although such models have often been applied to polymers, there is little direct experimental evidence to confirm the validity of these theories when applied to polymers. We present such results for a newly-developed block co-polymer Hytrel, a highly insulating material. The constant voltage resistivity test method has been used to study Hytrel for a range of electric fields approaching electrostatic breakdown. Previously taken preliminary measurements are suggestive that Hytrel validates hopping conductivity models. With additional data we consider whether the Hytrel results are consistent with existing models of electric-field induced hopping conductivity.
Recommended Citation
S. R. Hart, J. Brunson, and JR Dennison, “Electric-Field-Induced Hopping Conductivity in Polymers,” Bull. Am. Phys. Soc. 52(1) Part II, (2007). American Physical Society March Meeting 2007, March 5-9, 2007, Denver,CO.
Comments
Bull. Am. Phys. Soc. 52(1) Part II, (2007). American Physical Society March Meeting 2007, March 5-9, 2007, Denver,CO..