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The Parylene C as a Flexible Substrate and Passivation Layer: A Promising Candidate for a Piezoelectric, Piezoresistive, and Capacitive Pressure Sensor in Low-Pressure Range       
Yazarlar
Öğr. Gör. Sedat KURNAZ
Türkiye
Prof. Dr. Özgür ÖZTÜRK
Türkiye
Dr. Öğr. Üyesi Nurdane YILMAZ
Türkiye
Doç. Dr. Osman ÇİÇEK
Kastamonu Üniversitesi, Türkiye
Özet
Parylene C is widely used as a passivation layer due to its excellent chemical inertness, electrical insulation, biocompatibility, and flexibility. But, it is a potential piezoelectric material that can be used as a flexible pressure sensor. Herein, the parylene C is synthesized via the chemical vapor deposition method. The flexible piezoelectric, piezoresistive, and capacitive pressure sensors based on parylene C are fabricated. The flexible piezoelectric pressure sensor is used for the first time. The sensing performance of these sensors is comparatively investigated, showing high sensitivities of 140 mV, 0.046 kPa {-{1}} , and 0.080 kPa {-{1}} in the low-pressure range (< 4 kPa), respectively. Furthermore, the response times (0.40, 0.37, and 0.48 s) and the relaxation times (0.21, 0.37, and 0.62 s) are achieved. This work demonstrates that parylene C, which is often used as a passivation layer, can also be used as a flexible piezoresistive and capacitive pressure sensor. It could also be a potential candidate for wearable healthcare monitoring, human-machine interfaces, and soft robotics in the low-pressure range.
Anahtar Kelimeler
Capacitive sensor,parylene C,piezoelectric sensor,piezoresistive sensor,pressure
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Institute of Electrical and Electronics Engineers (IEEE)
Dergi ISSN 1530-437X
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q1
Makale Dili Türkçe
Basım Tarihi 10-2023
Cilt No 23
Doi Numarası 10.1109/JSEN.2023.3305058
Makale Linki http://dx.doi.org/10.1109/jsen.2023.3305058