Thermal stability of electro-optic response in poled polyimide systems

J. W. Wu, J. F. Valley, S. Ermer, E. S. Binkley, J. T. Kenney, G. F. Lipscomb, R. Lytel

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Using polyimide as host in a guest-host thin film we demonstrate the first poled-polymer electro-optic response stable at temperatures up to 150°C (samples poled and cured at 250°C). A coplanar-electrode poling geometry is used so that the molecular alignment of the guest dye between the electrodes is coincident with the free volume of the host. We hypothesize that "high" temperature poling during the imidization process, when the polyimide forms rings and densifies, accounts for the excellent poled response stability.

Original languageEnglish
Pages (from-to)225-227
Number of pages3
JournalApplied Physics Letters
Issue number3
StatePublished - 1991


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