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Contact Electrification between Identical Materials
Author(s) -
Apodaca Mario M.,
Wesson Paul J.,
Bishop Kyle J. M.,
Ratner Mark A.,
Grzybowski Bartosz A.
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200905281
Subject(s) - charge (physics) , contact electrification , scale (ratio) , condensed matter physics , monotonic function , materials science , chemical physics , physics , theoretical physics , quantum mechanics , mathematics , composite material , triboelectric effect , mathematical analysis
Ch‐ch‐ch‐charges : Pieces of identical, atomically flat insulators separate a charge Q when brought into contact and then parted. Repeated contacts cause the magnitudes of the separated charges to increase monotonically (see picture). A theoretical model is presented that explains these phenomena by the inherent, molecular‐scale fluctuations in the composition of the seemingly identical contacting surfaces.