Contact Electrification and the Electric Current
نویسندگان
چکیده
منابع مشابه
Electrons on dielectrics and contact electrification
Surfaces of dielectrics (insulators) often become charged following contact with metals, semiconductors, and dielectrics with or without rubbing. The mechanism and participants in the charge transfer (electrons or ions), although widely investigated, are still controversial. Whereas the identity of the charge carrier cannot be distinguished by electrostatic measurements, we have recently found ...
متن کاملContact electrification between identical materials.
Contact electrification (CE), the transfer of charge between two surfaces that are brought into contact and then separated, plays a central role in several useful technologies, such as photocopying, laser printing, and electrostatic separation methods, but is also responsible for the build-up of charge leading to electrical shocks, explosions, mechanical jams, or damage of electronic equipment....
متن کاملContact de-electrification of electrostatically charged polymers.
The contact electrification of insulating organic polymers is still incompletely understood, in part because multiple fundamental mechanisms may contribute to the movement of charge. This study describes a mechanism previously unreported in the context of contact electrification: that is, "contact de-electrification", a process in which polymers charged to the same polarity discharge on contact...
متن کاملRole of contact electrification and electrostatic interactions in gecko adhesion.
Geckos, which are capable of walking on walls and hanging from ceilings with the help of micro-/nano-scale hierarchical fibrils (setae) on their toe pads, have become the main prototype in the design and fabrication of fibrillar dry adhesives. As the unique fibrillar feature of the toe pads of geckos allows them to develop an intimate contact with the substrate the animal is walking on or cling...
متن کاملControlling the kinetics of contact electrification with patterned surfaces.
This communication describes a new approach for controlling static charging (contact electrification), and resulting electrical discharging, that occurs when two contacting materials separate. The prevention of contact electrification is an important problem; unwanted adhesion between oppositely charged materials, spark-initiated explosions, and damage to microelectronic circuitry are some of t...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1915
ISSN: 0036-8733
DOI: 10.1038/scientificamerican11201915-322supp