Enhanced electro-hydrodynamics for electrospinning a highly sensitive flexible fiber-based piezoelectric sensor

Vu, Trung-Hieu and Nguyen, Hang Thu and Fastier-Wooller, Jarred W. and Tran, Canh-Dung ORCID: https://orcid.org/0000-0002-1011-4226 and Nguyen, Tuan-Hung and Nguyen, Hong-Quan and Nguyen, Thanh ORCID: https://orcid.org/0000-0002-3213-6178 and Nguyen, Tuan-Khoa and Dinh, Toan ORCID: https://orcid.org/0000-0002-7489-9640 and Bui, Tung T. and Zhong, Yulin and Phan, Hoang-Phuong and Nguyen, Nam-Trung and Dao, Dzung V. and Dau, Van Thanh (2022) Enhanced electro-hydrodynamics for electrospinning a highly sensitive flexible fiber-based piezoelectric sensor. ACS Applied Electronic Materials, 4 (3). pp. 1301-1310.

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The single-jet mode in an electro-hydrodynamic (EHD) system is the most desirable mode for generating uniform droplets and fibers and has many applications in numerous fields. Several studies have been carried out to enhance the performance of the EHD process focusing on this mode. In this paper, we introduce the use of a chamfered nozzle in an EHD system to greatly extend the single-jet mode’s voltage range, and generally, to enhance the EHD process in terms of control capability and product quality. We carried out simulations and experiments to compare the performance of a chamfered nozzle and conventional flat-end nozzle. Both theoretical analysis and experiments demonstrate that the chamfered nozzle in an EHD system reduces the critical voltage, broadens the voltage range for the single-jet mode, and enhances homogeneity in particle and fiber generation. Furthermore, the chamfered nozzle’s advantages were demonstrated in fabricating highly uniform polyvinylidene fluoride-co-trifluoroethylene (PVDF-TrFE) fibers for piezoelectric sensor development. Owing to the fibers’ excellent quality, the sensor shows high sensitivity that can detect and differentiate between the drops of a metal bead, a water droplet, and an oil droplet. The use of a chamfered nozzle with its advantages shows potential for development of better EHD-based devices.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: File reproduced in accordance with the copyright policy of the publisher/author.
Faculty/School / Institute/Centre: Current – Faculty of Health, Engineering and Sciences - School of Engineering (1 Jan 2022 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 05 Apr 2022 06:44
Last Modified: 27 Sep 2022 02:26
Uncontrolled Keywords: flexible piezoelectric sensor, single-jet electro-hydrodynamics, PVDF fibers, polymer electrospray, water droplet sensing, PVDF-TrFE sensor, enhanced electro-hydrodynamics
Fields of Research (2020): 40 ENGINEERING > 4017 Mechanical engineering > 401705 Microelectromechanical systems (MEMS)
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
Identification Number or DOI: https://doi.org/10.1021/acsaelm.2c00030
URI: http://eprints.usq.edu.au/id/eprint/47646

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