scholarly journals Fabrication and Characterization of Non-Equilibrium Plasma-Treated PVDF Nanofiber Membrane-Based Sensors

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4179
Author(s):  
Quazi Nahida Sultana ◽  
Mujibur Khan ◽  
Rajib Mahamud ◽  
Mohammadsadegh Saadatzi ◽  
Papia Sultana ◽  
...  

The effect of a self-pulsing non-equilibrium plasma discharge on piezoelectric PVDF nanofiber membrane was investigated. The plasma discharge was generated in air with a DC power source, with a discharge current of 0.012 mA, a nominal interelectrode separation of 1 mm, and discharge voltage of ~970 V. In a continuous fabrication process, the electrospinning method was used to generate thin nanofiber membrane with a flow rate of 0.7–1 mL h−1 and 25–27 kV voltage to obtain the nanofiber with high sensitivity and a higher degree of alignment and uniformity over a larger area. Plasma treatment was applied on both single layer and multi-layer (three layers) nanomembranes. In addition, simultaneously, the nanofiber membranes were heat-treated at a glass transition temperature (80–120 °C) and then underwent plasma treatment. Fourier-transform infrared (FTIR) spectroscopy showed that the area under the curve at 840 and 1272 cm−1 (β phase) increased due to the application of plasma and differential scanning calorimeter (DSC) indicated an increase in the degree of crystallinity. Finally, PVDF sensors were fabricated from the nanofibers and their piezoelectric properties were characterized. The results suggested that compared to the pristine samples the piezoelectric properties in the plasma and plasma-heat-treated sensors were enhanced by 70% and 85% respectively.

Catalysts ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 75
Author(s):  
Jacek Tyczkowski ◽  
Hanna Kierzkowska-Pawlak

Cold (non-equilibrium) plasma techniques have long been used as plasma deposition methods to create new materials, often with unique properties, which cannot be produced any other way, as well as plasma treatment methods for the sophisticated modification of conventional materials [...]


2017 ◽  
Vol 2017 (0) ◽  
pp. 453
Author(s):  
Yuya MOTOKI ◽  
Hiroto TANAKA ◽  
Hyota HOSHINO ◽  
Akira IIJIMA ◽  
Tomohiko ASAI

2016 ◽  
Vol 98 (3) ◽  
pp. 285-293 ◽  
Author(s):  
Ramakrishnan Balasubramanian ◽  
Karupannasamy Anandhanarayanan ◽  
Rajah Krishnamurthy ◽  
Debasis Chakraborty

Author(s):  
Timothy Ombrello ◽  
Xiao Qin ◽  
Yiguang Ju ◽  
Shailesh Gangoli ◽  
Alexander Gutsol ◽  
...  

2016 ◽  
Vol 2 (4(28)) ◽  
pp. 60
Author(s):  
Ольга Вячеславовна Сергеева ◽  
Александр Андреевич Пивоваров

2011 ◽  
Vol 33 (2) ◽  
pp. 3211-3218 ◽  
Author(s):  
Wenting Sun ◽  
Mruthunjaya Uddi ◽  
Timothy Ombrello ◽  
Sang Hee Won ◽  
Campbell Carter ◽  
...  

2021 ◽  
Vol 58 (5) ◽  
pp. 0500007-50000762
Author(s):  
黄民双 Huang Minshuang ◽  
许友文 Xu Youwen ◽  
程苗 Cheng Miao

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