Bipolar Patterning of Polymer Membranes by Pyroelectrification

Romina Rega; Oriella Gennari; Laura Mecozzi; Simonetta Grilli; Vito Pagliarulo; Pietro Ferraro

doi:10.1002/adma.201503711

Bipolar Patterning of Polymer Membranes by Pyroelectrification

Adv Mater. 2016 Jan 20;28(3):454-9. doi: 10.1002/adma.201503711. Epub 2015 Nov 19.

Authors

Romina Rega¹, Oriella Gennari¹, Laura Mecozzi^{1

2}, Simonetta Grilli¹, Vito Pagliarulo¹, Pietro Ferraro¹

Affiliations

¹ National Council of Research, Institute of Applied Science & Intelligent Systems (ISASI) "E. Caianiello,", Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy.
² Engineering Department, University "Federico II,", P.le Tecchio 80, 80125, Napoli, Italy.

PMID: 26584401
DOI: 10.1002/adma.201503711

Abstract

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.

Keywords: cell patterning; charge patterning; lithium niobate; polymer membranes; pyroelectric effects.