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Microcutting Materials on Polymer Substrates
Author(s) -
Stutzmann N.,
Tervoort T.A.,
Broer D.J.,
Sirringhaus H.,
Friend R.H.,
Smith P.
Publication year - 2002
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 - 10.1002/1616-3028(20020201)12:2<105::aid-adfm105>3.0.co;2-i
Subject(s) - materials science , micrometer , ceramic , indium tin oxide , pedot:pss , polymer , nanotechnology , brittleness , conductive polymer , oxide , indium , optoelectronics , composite material , optics , metallurgy , thin film , physics
The production of micrometer and sub‐micrometer features over large areas for use in electronic and optical structures remains challenging, particularly as requirements extend beyond traditional electronic materials to ceramics and polymers. We demonstrate that the technique of microcutting allows patterning of such structures on polymer substrates of these materials as exemplified by the ceramic indium tin oxide (ITO) and the conducting polymer poly(3,4‐ethylenedioxythiophene) (PEDOT). Given the brittleness of most ceramics such as ITO, this is very unexpected, but we find no evidence for microcracking and find high electrical conductivities in narrow tracks (∼2.5 μm) that are separated by less than 500 nm. The micrometer‐scale patterns also act as very efficient alignment layers for liquid crystals (LCs), and allow complex alignment patterns.