TY - JOUR
T1 - Fabrication of poly (vinylidene fluoride) films by ultrasonic spray coating; uniformity and piezoelectric properties
AU - Taleb, Sepide
AU - Badillo-Ávila, Miguel A.
AU - Acuautla, Mónica
N1 - Funding Information:
This work was supported by the start-up grant of the FSE at the University of Groningen, the Netherlands ; and MB thanks the support of the Postdoctoral CONACyT - Mexico scholarship ( CVU 356403 ).
Publisher Copyright:
© 2021 The Author(s)
PY - 2021/12/15
Y1 - 2021/12/15
N2 - Piezoelectric Poly (vinylidene fluoride) (PVDF) films with high flexibility are a suitable and promising replacement for rigid ceramic piezoelectric materials. However, for this purpose, enhancing piezoelectric properties and adopting an industrial fabrication method are of great importance. In this study, 5–9 µm thick PVDF films were fabricated by a nozzle-less ultrasonic spray coating (USC) system, followed by an annealing process at 100 °C. By applying proper spraying parameters, we could obtain highly uniform films with large d33 values (48 pm/V) and 56% crystallinity. Results show that the uniformity of the films plays an important role in the final piezoelectric properties. Thus, ultrasonic spray coating method can be used for fabrication of large-scale piezoelectric films with no need for poling or stretching processes.
AB - Piezoelectric Poly (vinylidene fluoride) (PVDF) films with high flexibility are a suitable and promising replacement for rigid ceramic piezoelectric materials. However, for this purpose, enhancing piezoelectric properties and adopting an industrial fabrication method are of great importance. In this study, 5–9 µm thick PVDF films were fabricated by a nozzle-less ultrasonic spray coating (USC) system, followed by an annealing process at 100 °C. By applying proper spraying parameters, we could obtain highly uniform films with large d33 values (48 pm/V) and 56% crystallinity. Results show that the uniformity of the films plays an important role in the final piezoelectric properties. Thus, ultrasonic spray coating method can be used for fabrication of large-scale piezoelectric films with no need for poling or stretching processes.
KW - Piezoelectric coefficient
KW - Poly (vinylidene fluoride) (PVDF)
KW - Ultrasonic spray coating
KW - Uniformity
UR - http://www.scopus.com/inward/record.url?scp=85119927734&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2021.110273
DO - 10.1016/j.matdes.2021.110273
M3 - Article
AN - SCOPUS:85119927734
VL - 212
JO - Materials & design
JF - Materials & design
SN - 0261-3069
M1 - 110273
ER -