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Improvement in the Breakdown Properties of Electrowetting Using Polyelectrolyte Ionic Solution
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DOI：10.1021/la303903m.png)
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We report the improvement in the breakdown properties of electrowetting using a mixture of poly(acrylic acid) (PAA) polyelectrolyte and a surfactant (Tween 80, TW80). Onset of breakdown was initially determined via visual observation and further verified by investigating impedance phase shift Breakdown characteristics of the large-molecule ionic solution were compared with those of 1 conventional electrolytes (Na2SO4) that produce small molecules. Experiments with various conductivities and hydrophobic coatings on a thin silicon nitride dielectric layer (similar to 500 angstrom) showed that the breakdown voltage of the PAA-TW80 system was at least two times higher than that of the Na2SO4-TW80 system. Our results demonstrate that defects in the dielectric and hydrophobic layers are less vulnerable to larger ionic molecules.
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VOLTAGE
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3.9
论文数:
5.4W
被引数:
10.6W
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Preparation and Analysis of 1-Chloronaphthalene for Highly Refractive Electrowetting Optics.png)
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