Role Of Delocalized 7 Electrons In Nonlinear Optical And Electrical Conductivity Properties Of Polymers

Larry R Dalton

doi:10.1117/12.939641

28 January 1987 Role Of Delocalized π Electrons In Nonlinear Optical And Electrical Conductivity Properties Of Polymers

Larry R Dalton

Proceedings Volume 0682, Molecular and Polymeric Optoelectronic Materials; (1987) https://doi.org/10.1117/12.939641
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

For several years, delocalized 'if-electron polymers have attracted considerable scientific interest because of electrical conductivity properties which could be associated with solitonic, polaronic, and bipolaronic species. More recently, the observation of third order susceptibilities, x⁽³⁾, in the range 10^-9 to 10^-11esu has generated interest in these materials for nonlinear optical applications. Electrical conductivity and nonlinear optical properties depend upon electronic characteristics such as "time-independent" and "time-dependent" electron delocalization, upon intra- and intermolecular charge transfer, and upon electron-phonon coupling. We have utilized advanced electron paramagnetic resonance techniques to characterize such electronic properties for the linear polyene polyacetylene and for a number of heteroararatic ladder polymers. The results of these measurements are used to make predictions of nonlinear optical activity.

Citation Download Citation

Larry R Dalton "Role Of Delocalized π Electrons In Nonlinear Optical And Electrical Conductivity Properties Of Polymers", Proc. SPIE 0682, Molecular and Polymeric Optoelectronic Materials, (28 January 1987); https://doi.org/10.1117/12.939641

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