|Publisher DOI:||10.1364/OME.5.001653||Title:||Mechanism that governs the electro-optic response of second-order nonlinear polymers on silicon substrates||Language:||English||Authors:||Schulz, Kai Marvin
Marder, Seth R.
Jen, Alex K.-Y.
|Issue Date:||1-Jul-2015||Publisher:||OSA||Source:||Optical Materials Express 8 (5): 1653-1660 (2015)||Journal or Series Name:||Optical materials express||Abstract (english):||We use a modified Teng-Man technique to investigate the poling induced electro-optic activity of chromophore-doped organic polymers poled on silicon substrate in a thin film sample configuration. We reveal a fundamental difference between the poling processes on silicon substrate and ITO substrate. The electro-optic activity for polymers poled on silicon substrate is reduced which we ascribe to space charge formation at the silicon - organic interface that distorts the field distribution in the polymer film during high field poling, and therefore limits the effective induced polar order. We demonstrate that the electro-optic activity on silicon substrate can be improved by inserting a 5 nm thin dielectric layer of Al2O3q between the silicon substrate and the polymer which reduces the leakthrough current during poling, thereby allowing for higher applicable poling voltages.||URI:||http://hdl.handle.net/11420/7318||ISSN:||2159-3930||Institute:||Optische und Elektronische Materialien E-12||Type:||(wissenschaftlicher) Artikel||Funded by:||German Research Fondation (DFG) via FOR 653|
|Appears in Collections:||Publications without fulltext|
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