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Additive Contact Polarization of Nonferroelectric Polymers for Patterning of Multilevel Memory Elements

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Title
Additive Contact Polarization of Nonferroelectric Polymers for Patterning of Multilevel Memory Elements
Author(s)
Witold Adamkiewicz; Marta M. Siek; Tomasz W. Mazur; Sławomir Lach; Bartosz A. Grzybowski
Subject
additivity, ; contact electrification, ; multilevel memory, ; nonferroelectric polymers, ; polarization, ; thin films
Publication Date
2020-01
Journal
ACS APPLIED MATERIALS & INTERFACES, v.12, no.1, pp.1504 - 1510
Publisher
AMER CHEMICAL SOC
Abstract
© 2019 American Chemical Society.When a thin polymer film supported by a conductive substrate is contacted by and then separated from a micropatterned polymeric stamp, the so-called contact electrification creates electrical charges over the stamped regions. Simultaneously, image charges are induced in the conductive substrate. Together, the surface and image charges establish large fields within the film, in effect polarizing it. Upon consecutive stampings, the magnitudes of polarization add up, enabling imprinting of multilevel polarization patterns. Because the electric field is high only within the film but low across the Gaussian surface surrounding the film/substrate system, the discharge of surface charges is slow and the polarization patterns are relatively long-lived. These findings are significant since multilevel polarization states have, to date, been achieved only in ferroelectrics or some specialized polymers - the current method extends them to common polymers such as poly(methyl methacrylate), poly(vinyl pyrrolidone), or poly(vinyl acetate)
URI
https://pr.ibs.re.kr/handle/8788114/7016
DOI
10.1021/acsami.9b17392
ISSN
1944-8244
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
2020_ACS App Mater Inter_Bartosz_Additive Contact Polarization of Nonferroelectric Polymers for Patterning of Multilevel Memory Elements.pdfDownload

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