Structural and Electrical Characterization of Solution-Processed Electrodes for Piezoelectric Polymer Film Sensors
Rajala, S.; Mettänen, M.; Tuukkanen, S. (2016-03-15)
Julkaisun pysyvä osoite on
Solution-processable graphene and carbon nanotube-based electrode materials were used here to provide electrodes on ﬂexible piezoelectric polyvinylideneﬂuoride sensors. Piezoelectric sensitivity measurements, image-based analysis, adhesion tests, and sheet resistance measurements were applied to these printable sensors to rigorously analyze their performance and structure. The printable sensors showed electrical performance similar to metallized sensors, whereas the adhesion of the solution-processed materials to the substrate is not as high as that of the evaporated metal ﬁlms. This also affects the measured sensor sensitivity values. The measurements based on optical images were found to be a promising method to capture detailed information about the electrode surface structure.
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