16 March 2015 Biopolymers in optoelectronics
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Here we demonstrate a 40% increase in the nonlinearity, or electro-optic (EO) coefficient, of the nonlinear optic (NLO) polymer SEO100 with the addition of a thin guanine nucleobase buffer layer deposited between the NLO polymer and the cathode electrode. We suggest that the high lowest unoccupied molecular orbital of guanine flattens the field distribution at the high injection barrier reducing leakage current during poling. This has the potential to realize higher EO coefficients without the need to synthesize new NLO polymer materials, as well as an increase in device yield due to less failure during poling.
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Fahima Ouchen, Fahima Ouchen, Emily Heckman, Emily Heckman, Larry R. Dalton, Larry R. Dalton, James Grote, James Grote, "Biopolymers in optoelectronics", Proc. SPIE 9360, Organic Photonic Materials and Devices XVII, 936002 (16 March 2015); doi: 10.1117/12.2083021; https://doi.org/10.1117/12.2083021

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