Characterization of single polyvinylidene fluoride (PVDF) nanofiber for flow sensing applications
The use of Polyvinylidene Fluoride (PVDF) based piezoelectric nanofibers for sensing and actuation has been reported widely in the past. However, in most cases, PVDF piezoelectric nanofiber mats have been used for sensing applications. This work fundamentally characterizes a single electrospun PVDF...
| Main Authors: | , , , , , , , |
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| 其他作者: | |
| 格式: | Journal Article |
| 语言: | English |
| 出版: |
2019
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| 主题: | |
| 在线阅读: | https://hdl.handle.net/10356/85413 http://hdl.handle.net/10220/48213 |
| _version_ | 1826117543677394944 |
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| author | Sengupta, Debarun Kottapalli, Ajay Giri Prakash Chen, Ssu Han Miao, Jian Min Kwok, Chee Yee Triantafyllou, Michael Stefanos Warkiani, Majid Ebrahimi Asadnia, Mohsen |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Sengupta, Debarun Kottapalli, Ajay Giri Prakash Chen, Ssu Han Miao, Jian Min Kwok, Chee Yee Triantafyllou, Michael Stefanos Warkiani, Majid Ebrahimi Asadnia, Mohsen |
| author_sort | Sengupta, Debarun |
| collection | NTU |
| description | The use of Polyvinylidene Fluoride (PVDF) based piezoelectric nanofibers for sensing and actuation has been reported widely in the past. However, in most cases, PVDF piezoelectric nanofiber mats have been used for sensing applications. This work fundamentally characterizes a single electrospun PVDF nanofiber and demonstrates its application as a sensing element for nanoelectromechanical sensors (NEMS). PVDF nanofiber mats were spun by far field electrospinning (FFES) process and complete material characterization was conducted by means of scanning electron microscope (SEM) imaging, Raman Spectroscopy and FTIR spectroscopy. An optimized recipe was developed for spinning a single suspended nanofiber on a specially designed MEMS substrate which allows the nano-mechanical and electrical characterization of a single PVDF nanofiber. Electrical characterization is conducted using a single suspended nanofiber to determine the piezoelectric coefficient (d33) of the nanofiber to be -58.77 pm/V. Also the mechanical characterization conducted using a nanoindenter revealed a Young’s Modulus and hardness of 2.2 GPa and 0.1 GPa respectively. Finally, an application that utilizes the single PVDF nanofiber as a sensing element to form a NEMS flow sensor is demonstrated. The single nanofiber flow sensor is tested in presence of various oscillatory flow conditions. |
| first_indexed | 2024-10-01T04:29:01Z |
| format | Journal Article |
| id | ntu-10356/85413 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:29:01Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/854132023-03-04T17:12:03Z Characterization of single polyvinylidene fluoride (PVDF) nanofiber for flow sensing applications Sengupta, Debarun Kottapalli, Ajay Giri Prakash Chen, Ssu Han Miao, Jian Min Kwok, Chee Yee Triantafyllou, Michael Stefanos Warkiani, Majid Ebrahimi Asadnia, Mohsen School of Mechanical and Aerospace Engineering Electrodeposition Electrospinning DRNTU::Engineering::Mechanical engineering The use of Polyvinylidene Fluoride (PVDF) based piezoelectric nanofibers for sensing and actuation has been reported widely in the past. However, in most cases, PVDF piezoelectric nanofiber mats have been used for sensing applications. This work fundamentally characterizes a single electrospun PVDF nanofiber and demonstrates its application as a sensing element for nanoelectromechanical sensors (NEMS). PVDF nanofiber mats were spun by far field electrospinning (FFES) process and complete material characterization was conducted by means of scanning electron microscope (SEM) imaging, Raman Spectroscopy and FTIR spectroscopy. An optimized recipe was developed for spinning a single suspended nanofiber on a specially designed MEMS substrate which allows the nano-mechanical and electrical characterization of a single PVDF nanofiber. Electrical characterization is conducted using a single suspended nanofiber to determine the piezoelectric coefficient (d33) of the nanofiber to be -58.77 pm/V. Also the mechanical characterization conducted using a nanoindenter revealed a Young’s Modulus and hardness of 2.2 GPa and 0.1 GPa respectively. Finally, an application that utilizes the single PVDF nanofiber as a sensing element to form a NEMS flow sensor is demonstrated. The single nanofiber flow sensor is tested in presence of various oscillatory flow conditions. NRF (Natl Research Foundation, S’pore) Published version 2019-05-16T01:29:27Z 2019-12-06T16:03:21Z 2019-05-16T01:29:27Z 2019-12-06T16:03:21Z 2017 Journal Article Sengupta, D., Kottapalli, A. G. P., Chen, S. H., Miao, J. M., Kwok, C. Y., Triantafyllou, M. S., . . . Asadnia, M. (2017). Characterization of single polyvinylidene fluoride (PVDF) nanofiber for flow sensing applications. AIP Advances, 7(10), 105205-. doi:10.1063/1.4994968 https://hdl.handle.net/10356/85413 http://hdl.handle.net/10220/48213 10.1063/1.4994968 en AIP Advances © 2017 The Author(s). All rights reserved. This paper was published by American Institute of Physics in AIP Advances and is made available with permission of The Author(s). 7 p. application/pdf |
| spellingShingle | Electrodeposition Electrospinning DRNTU::Engineering::Mechanical engineering Sengupta, Debarun Kottapalli, Ajay Giri Prakash Chen, Ssu Han Miao, Jian Min Kwok, Chee Yee Triantafyllou, Michael Stefanos Warkiani, Majid Ebrahimi Asadnia, Mohsen Characterization of single polyvinylidene fluoride (PVDF) nanofiber for flow sensing applications |
| title | Characterization of single polyvinylidene fluoride (PVDF) nanofiber for flow sensing applications |
| title_full | Characterization of single polyvinylidene fluoride (PVDF) nanofiber for flow sensing applications |
| title_fullStr | Characterization of single polyvinylidene fluoride (PVDF) nanofiber for flow sensing applications |
| title_full_unstemmed | Characterization of single polyvinylidene fluoride (PVDF) nanofiber for flow sensing applications |
| title_short | Characterization of single polyvinylidene fluoride (PVDF) nanofiber for flow sensing applications |
| title_sort | characterization of single polyvinylidene fluoride pvdf nanofiber for flow sensing applications |
| topic | Electrodeposition Electrospinning DRNTU::Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/85413 http://hdl.handle.net/10220/48213 |
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