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A Microfabricated Movable Electrochromic “Pixel” Based on Polypyrrole
Author(s) -
Smela E.
Publication year - 1999
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(199911)11:16<1343::aid-adma1343>3.0.co;2-v
Subject(s) - polypyrrole , materials science , electrochromism , bilayer , silicon , optoelectronics , diode , polymer , hinge , nanotechnology , conductive polymer , composite material , polymerization , electrode , mechanical engineering , chemistry , membrane , biology , engineering , genetics
Moving light‐emitting diodes are envisioned as a possible application of the work presented here. Microfabricated bilayer hinges of polypyrrole (PPy) and gold are used to rotate and position silicon plates. This is achieved by electrochemically altering the oxidation state of PPy, thus causing a significant volume change in the polymer. It is demonstrated that power can be supplied to devices on the silicon plates, which is illustrated by the use of a PPy “pixel”, which changes color as the potential is varied.