Energy Storage Properties of Blended Polymer Films with Normal Ferroelectric P(VDF-HFP) and Relaxor Ferroelectric P(VDF-TrFE-CFE)
| العنوان: | Energy Storage Properties of Blended Polymer Films with Normal Ferroelectric P(VDF-HFP) and Relaxor Ferroelectric P(VDF-TrFE-CFE) |
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| المؤلفون: | Doo Hyun Choi, Ji-Ho Lim, Han-Bo Jung, Do-Kyun Kwon, Dae-Yong Jeong, Jin-Woo Kim |
| المصدر: | Electronic Materials Letters. 16:47-54 |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Materials science, 02 engineering and technology, Dielectric, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Ferroelectricity, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, law.invention, Capacitor, Hysteresis, law, Phase (matter), Electric field, Crystallite, Composite material, 0210 nano-technology, Polarization (electrochemistry) |
| الوصف: | With the recent development of wearable/portable electronic devices, the power sources need to be flexible and miniaturized. As the power supply, a dielectric capacitor is used for systems requiring high power in a short time, which in turn necessitates dielectric materials with high energy density and fast discharging time for device miniaturization. In this study, we attempt to improve the energy density of organic materials by blending normal ferroelectric P(VDF-HFP), which offers high dielectric breakdown strength, and relaxor ferroelectric P(VDF-TrFE-CFE), which provides a high dielectric constant. The role of P(VDF-HFP) as a defect in the P(VDF-TrFE-CFE) crystallite improved the properties of the relaxor-ferroelectrics. Increasing the terpolymer content in the blended films reduced the normal ferroelectric β-phase, which revealed that non-polar phase was induced. The copolymer and terpolymer were blended in various weight ratios (10:0, 7:3, 5:5, 3:7, 1:9 and 0:10) and cast into films. The blends with a copolymer/terpolymer ratio of 1:9 showed reduced hysteresis and remnant polarization, compared to those of the pure terpolymer, and a higher maximum polarization (Pmax) value at an electric field of 250 MV/m, indicating a less saturated polarization at high electric field. To conclude, the PVDF-based copolymer/terpolymer (1:9 ratio) blends showed the highest energy density (6.58 J/cm3). |
| تدمد: | 2093-6788 1738-8090 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::212b697e3e782bf04a6e0ca4c76b3529 https://doi.org/10.1007/s13391-019-00188-x |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........212b697e3e782bf04a6e0ca4c76b3529 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 20936788 17388090 |
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