Enhanced thereto-electro-mechanical characteristics of purified P(VDF-TrFE) films for ultrasonic transducers
DC Field | Value | Language |
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dc.contributor.author | Park, Cheon-Ho | - |
dc.contributor.author | Quang Van Duong | - |
dc.contributor.author | Moon, Yong-Ju | - |
dc.contributor.author | Ha, Kanglyeol | - |
dc.contributor.author | Choi, Seung Tae | - |
dc.date.available | 2019-01-22T12:59:00Z | - |
dc.date.issued | 2018-08 | - |
dc.identifier.issn | 0924-4247 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/902 | - |
dc.description.abstract | In this study, the fabrication process of a piezoelectric poly[(vinylidenefluoride-trifluoroethylene) [P(VDF-TrFE)] film was optimized to maximize its crystallinity and piezoelectric properties and to improve its thermal stability. The effect of purification of P(VDF-TrFE) solution dissolved in methyl ethyl ketone [MEK] and uniaxial stretching on the properties and performance of P(VDF-TrFE) film was studied. In the purification process, the solution was filtered with a syringe filter with 2.7 mu m pores. X-ray diffraction measurements showed that the stretching and purification processes increased the crystallinity of the P(VDF-TrFE) films by approximately 16.2% and 2.2%, respectively. A high-temperature storage test showed that the unstretched P(VDF-TrFE) films lose most of their polarization after 1-h storage at 70 degrees C. The stretching process greatly increased the thermal stability of the films so that the purified and stretched P(VDF-TrFE) films exhibited a small variation within 6% in the piezoelectric strain constant (d(33)) for 96 h at 70 degrees C. Ultrasonic transducers (UTs) were also fabricated with the purified and stretched P(VDF-TrFE) films. The pulse-echo measurement showed that the sensitivity and bandwidth of the UTs increased by 4.5 dB and decreased by 24.3%, respectively, compared to UTs fabricated with the purified P(VDF-TrFE) film without stretching. (C) 2018 Elsevier B.V. All rights reserved. | - |
dc.format.extent | 7 | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Enhanced thereto-electro-mechanical characteristics of purified P(VDF-TrFE) films for ultrasonic transducers | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.sna.2018.06.060 | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS A-PHYSICAL, v.279, pp 586 - 592 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000444664500068 | - |
dc.identifier.scopusid | 2-s2.0-85049919675 | - |
dc.citation.endPage | 592 | - |
dc.citation.startPage | 586 | - |
dc.citation.title | SENSORS AND ACTUATORS A-PHYSICAL | - |
dc.citation.volume | 279 | - |
dc.type.docType | Article | - |
dc.publisher.location | 네델란드 | - |
dc.subject.keywordAuthor | Piezoelectric polymer | - |
dc.subject.keywordAuthor | P(VDF-TrFE) | - |
dc.subject.keywordAuthor | Crystallinity | - |
dc.subject.keywordAuthor | Thermal stability | - |
dc.subject.keywordAuthor | Ultrasonic transducer | - |
dc.subject.keywordAuthor | Pulse-echo response | - |
dc.subject.keywordPlus | FLUORIDE-TRIFLUOROETHYLENE COPOLYMER | - |
dc.subject.keywordPlus | SINGLE-CRYSTALLINE FILMS | - |
dc.subject.keywordPlus | VINYLIDENE FLUORIDE | - |
dc.subject.keywordPlus | PRESSURE SENSORS | - |
dc.subject.keywordPlus | PIEZOELECTRICITY | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | POLYMER | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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