Heterogeneity of surface potential in contact electrification under ambient conditions: A comparison of pre- and post-contact states
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چکیده
منابع مشابه
Heterogeneity of Surface Potential in Contact Electrification under Ambient Conditions: a comparison of pre- and post-contact states
We measured the pattern of charging by contact electrification, following contact between a polydimethylsiloxane (PDMS) stamp and a glass substrate with gold electrodes. We used scanning Kelvin probe microscopy to map the surface potential at the same regions before and after contact, allowing a point-by-point comparison. After contact, the mean surface potential of the glass shifted by 360 mV ...
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15 صفحه اولThe mosaic of surface charge in contact electrification.
When dielectric materials are brought into contact and then separated, they develop static electricity. For centuries, it has been assumed that such contact charging derives from the spatially homogeneous material properties (along the material's surface) and that within a given pair of materials, one charges uniformly positively and the other negatively. We demonstrate that this picture of con...
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ژورنال
عنوان ژورنال: Journal of Electrostatics
سال: 2016
ISSN: 0304-3886
DOI: 10.1016/j.elstat.2016.04.002