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Bipolar Patterning of Polymer Membranes by Pyroelectrification
Author(s) -
Rega Romina,
Gennari Oriella,
Mecozzi Laura,
Grilli Simonetta,
Pagliarulo Vito,
Ferraro Pietro
Publication year - 2016
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/adma.201503711
Subject(s) - materials science , membrane , pyroelectricity , polymer , poling , lithium niobate , lithium (medication) , optoelectronics , composite material , ferroelectricity , dielectric , medicine , genetics , biology , endocrinology
Polymer freestanding membranes with permanent bipolar patterns are fabricated by “pyroelectrification”. The thermal stimulation of periodically poled lithium niobate (PPLN) crystals simultaneously generates the pyroelectric effect, the glass transition of the polymer, and therefore the periodic electric poling of the polymer. The reliability of these membranes is demonstrated for applications under both dry and wet conditions, including cell patterning.