4A3_0475_INTEREST OF IN SITU-RAMAN SPECTROSCOPY IN THE OPTIMIZATION OF PIEZOELECTRIC FIBERS FOR THE DEVELOPMENT OF ENERGY HARVESTERS.

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François Rault

David Chapron

Anaëlle Talbourdet

Cédric Cochrane

Guillaume Lemort

Eric Devaux

Christine Campagne

Patrice Bourson

Published Jul 10, 2019

Abstract

Energy harvesting is a promising concept that can be used in the development of smart textiles to solve one of the major issues: energy supply. Producing PVDF piezoelectric fibers is a possible way. However, to ensure the piezoelectric character and lead an electromechanical conversion its β phase is needed. The modification of crystalline phases is linked to the processing parameters. In-situ Raman spectroscopy measurements are made on a spinning device used for new synthetic fibers developments or small productions. The content of the crystalline phases α and β is measured for the first time at key points of such process.


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