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Reversible Nanopatterning on Polypyrrole Films by Atomic Force Microscope Electrochemical Lithography
Author(s) -
Liu He,
Hoeppener Stephanie,
Schubert Ulrich S.
Publication year - 2016
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201503834
Subject(s) - materials science , polypyrrole , lithography , nanotechnology , nanoscopic scale , conductive atomic force microscopy , substrate (aquarium) , conductive polymer , photolithography , nanolithography , atomic force microscopy , optoelectronics , polymer , polymerization , composite material , fabrication , medicine , oceanography , alternative medicine , pathology , geology
A reversible, erasable, and rewritable pattern at the nanoscale is inscribed on polypyrrole films doped with sodium dodecylbenzenesulfonate (PPy(DBS)) utilizing atomic force microscopy based electrochemical lithography. Nanopatterns are formed by applying a bias voltage between a conductive tip and the substrate. Afterward, the generated nanopatterns can be erased completely, followed by rewriting at the same location of the polymer film. Moreover, the alterations of PPy(DBS) during the lithography process are investigated by comparing the changes of the current intensity and surface potential depending on the lithography time.

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