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Fabrication, characterization and modeling of PVDF based organic IR-sensors for human body recognition

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9 Author(s)
G. Scheipl ; Institute of nanostructured Materials and Photonics, Joanneum Research, 8160 Weiz, Austria ; M. Zirkl ; B. Stadlober ; J. Groten
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Within this work a cost-effective thin film-sensor-technology based on PVDF-TrFE polymers for detection of ambient changes of temperature has been developed. A wet-chemical fabrication routine for obtaining ferroelectric thin films has been developed leading to a gammabutyrolactone based sol-gel process. The suitability of the synthesized material with respect to its usage as IR-sensing layer has been evaluated by vibrational spectroscopy and various electrical characterizations. In a second step, the adaptation of the lab scale routines for large area printing techniques on flexible substrates and their influence on the overall sensor performance and stability has been developed and tested. For simplifying the design process of adequate sensors used in different industrial applications, a mathematical model based on the heat distribution in a multilayer sensor system has been assessed and revised by experiments.

Published in:

Sensors, 2009 IEEE

Date of Conference:

25-28 Oct. 2009