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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| Format: | Article |
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American Institute of Physics (AIP)
2019
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| Online Access: | http://hdl.handle.net/1721.1/120082 https://orcid.org/0000-0002-4960-7060 |
| _version_ | 1826196551314178048 |
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| author | Sengupta, D. Kottapalli, A. G. P. Chen, S. H. Miao, J. M. Kwok, C. Y. Warkiani, M. E. Asadnia, M. Triantafyllou, Michael S |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Sengupta, D. Kottapalli, A. G. P. Chen, S. H. Miao, J. M. Kwok, C. Y. Warkiani, M. E. Asadnia, M. Triantafyllou, Michael S |
| author_sort | Sengupta, D. |
| collection | MIT |
| 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 | 2024-09-23T10:29:15Z |
| format | Article |
| id | mit-1721.1/120082 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T10:29:15Z |
| publishDate | 2019 |
| publisher | American Institute of Physics (AIP) |
| record_format | dspace |
| spelling | mit-1721.1/1200822022-09-30T21:27:48Z Characterization of single polyvinylidene fluoride (PVDF) nanofiber for flow sensing applications Sengupta, D. Kottapalli, A. G. P. Chen, S. H. Miao, J. M. Kwok, C. Y. Warkiani, M. E. Asadnia, M. Triantafyllou, Michael S Massachusetts Institute of Technology. Department of Mechanical Engineering Triantafyllou, Michael S 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. 2019-01-16T15:51:54Z 2019-01-16T15:51:54Z 2017-10 2017-07 2019-01-07T20:44:31Z Article http://purl.org/eprint/type/JournalArticle 2158-3226 http://hdl.handle.net/1721.1/120082 Sengupta, D. et al. “Characterization of Single Polyvinylidene Fluoride (PVDF) Nanofiber for Flow Sensing Applications.” AIP Advances 7, 10 (October 2017): 105205 © 2017 Author(s) https://orcid.org/0000-0002-4960-7060 http://dx.doi.org/10.1063/1.4994968 AIP Advances Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Institute of Physics (AIP) other univ website |
| spellingShingle | Sengupta, D. Kottapalli, A. G. P. Chen, S. H. Miao, J. M. Kwok, C. Y. Warkiani, M. E. Asadnia, M. Triantafyllou, Michael S 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 |
| url | http://hdl.handle.net/1721.1/120082 https://orcid.org/0000-0002-4960-7060 |
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