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 Prorok, Stefan Jalas, Dirk Marder, Seth R. Luo, Jingdong Jen, Alex K.-Y. Zierold, Robert Nielsch, Kornelius Eich, Manfred |
Issue Date: | 1-Jul-2015 | Publisher: | OSA | Source: | Optical Materials Express 8 (5): 1653-1660 (2015) | 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 | Journal: | Optical materials express | Institute: | Optische und Elektronische Materialien E-12 | Document Type: | Article | More Funding information: | German Research Fondation (DFG) via FOR 653 |
Appears in Collections: | Publications without fulltext |
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