Contact Electrification by Quantum-Mechanical Tunneling
نویسندگان
چکیده
منابع مشابه
Contact 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 کاملCharging of multiple interacting particles by contact electrification.
Many processes involve the movement of a disordered collection of small particles (e.g., powders, grain, dust, and granular foods). These particles move chaotically, interact randomly among themselves, and gain electrical charge by contact electrification. Understanding the mechanisms of contact electrification of multiple interacting particles has been challenging, in part due to the complex m...
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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 کاملElectrons 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 کاملQuantum mechanical transition state theory and tunneling corrections
An efficient implementation of the quantum mechanical transition state theory recently proposed by Hansen and Andersen @J. Chem. Phys. 101, 6032 ~1994!; J. Phys. Chem. 100, 1137 ~1996!# is presented. Their method approximates the flux–flux autocorrelation function by using short-time information to fit an assumed functional form ~with physically correct properties!. The approach described here ...
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ژورنال
عنوان ژورنال: Research
سال: 2019
ISSN: 2639-5274
DOI: 10.34133/2019/6528689