Detection of structural inhomogeneity in graded-index polymer materials by space charge measurements: numerical solutions

Marian Kryszewski; Grzegorz W. Bak

doi:10.1117/12.373692

14 December 1999 Detection of structural inhomogeneity in graded-index polymer materials by space charge measurements: numerical solutions

Marian Kryszewski, Grzegorz W. Bak

Author Affiliations +

Proceedings Volume 4017, Polymers and Liquid Crystals; (1999) https://doi.org/10.1117/12.373692
Event: International Conference on Dielectric and Related Phenomena '98, 1998, Szczyrk, Poland

Abstract

Introducing by diffusion guest molecules into a host polymer we can obtain very interesting materials with gradually changing refractive index. Such graded index materials may be used for many optical purposes. It has been shown previously that the gradient profile of guest molecules may be not consistent with the Fick's law. This means that it might be useful to find an independent non-destructive method of determination of gradient profile of guest molecules. If the guest polar molecules are diffused into a host non-polar matrix then the guest molecules may form charge traps. Detailed numerical analysis of space charge limited currents shows that it is possible to estimate the gradient profile of the charge traps at the injecting electrode if the concentration of the traps at the very surface is known.

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Marian Kryszewski and Grzegorz W. Bak "Detection of structural inhomogeneity in graded-index polymer materials by space charge measurements: numerical solutions", Proc. SPIE 4017, Polymers and Liquid Crystals, (14 December 1999); https://doi.org/10.1117/12.373692

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