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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.9b00546
|2 doi
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|a pubmed25n0995.xml
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Kim, Seung-Hyun
|e verfasserin
|4 aut
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| 245 |
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|a Fluorinated Titania Nanoparticle-Induced Piezoelectric Phase Transition of Poly(vinylidene fluoride)
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|c 2019
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 23.07.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a We prepared F-coated rutile titanium dioxide nanoparticles (r-TiO2 NPs) via simple thermal annealing of titania NPs in poly(vinylidene fluoride) (PVDF) and demonstrated that the F-coated r-TiO2 NP-doped composite film could efficiently induce piezoelectric phase transition of non-electroactive PVDF due to highly electronegative F bonds on the surface of these NPs. In the case of a 2.0 wt % composite film, 99.20% of the non-electroactive PVDF was transformed into the electroactive phase. Additionally, utilizing the F-coated r-TiO2 NPs for a piezoelectric device led to an enhancement of the piezoelectric performance. With the 5.0 wt % composite film, the resulting piezoelectric device exhibited voltage generation of 355 mV, whereas a device with the innate r-TiO2 NPs exhibited voltage generation of only 137 mV. Furthermore, because of optical inactivity of F-coated r-TiO2 NPs, the piezoelectric films exhibited high stability under 64 h of photoirradiation at an intensity of 0.1 W/cm2. These results indicate that the F-coated r-TiO2 NP-doped composite films could be useful for various applications, including outdoor energy-harvesting, self-powered wearable devices, and portable sensors
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|a Journal Article
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1 |
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|a Ha, Jong-Wook
|e verfasserin
|4 aut
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|a Lee, Sang Goo
|e verfasserin
|4 aut
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|a Sohn, Eun-Ho
|e verfasserin
|4 aut
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|a Park, In Jun
|e verfasserin
|4 aut
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|a Kang, Hong Suk
|e verfasserin
|4 aut
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| 700 |
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|a Yi, Gi-Ra
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 35(2019), 26 vom: 02. Juli, Seite 8816-8822
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:35
|g year:2019
|g number:26
|g day:02
|g month:07
|g pages:8816-8822
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|u http://dx.doi.org/10.1021/acs.langmuir.9b00546
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