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24 August 2010 Hybrid DNA materials for energy storage
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We investigate the dielectric and electrical properties of sol-gel/DNA-CTMA blends, with particular interest in capacitor applications in energy storage. Methacryloyloxypropyltrimethoxysilane (MAPTMS) was the solgel precursor, and DNA-CTMA was blended in to the resulting sol-gel at various weight percentages. The blends were tested for their dielectric properties and dielectric breakdown strength; the 5% DNA blend was found to be optimal with a dielectric constant in the range of 7.5, while the breakdown strength was greater than 800 V/μm for 1 μm films and about 500 V/μm for 5μm films. Hybrid sol-gel/DNA-CTMA/barium titanate nanoparticle composites were also formulated and their dielectric properties measured. While a high dielectric constant was achieved (38), this came at the expense of a significantly reduced breakdown voltage (160V/μm). We discuss these results as well as other aspects of the dielectric and electrical properties of these blends.
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R. A. Norwood, J. Thomas, N. Peyghambarian, J. Wang, L. Li, F. Ouchen, and J. E. Grote "Hybrid DNA materials for energy storage", Proc. SPIE 7765, Nanobiosystems: Processing, Characterization, and Applications III, 77650H (24 August 2010);

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