Formation mechanism of ferroelectric poly (vinylidene fluoride-trifluoroethylene) copolymers with in-plane dipole alignment under low electric field from melt and its SPR based pyroelectric sensor

Sutani, Yohei; Koshiba, Yasuko; Fukushima, Tatsuya; Ishida, Kenji

doi:10.1016/j.polymer.2021.123904

Cited by 8 publications

(5 citation statements)

References 42 publications

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“…[88] Copyright 2013, Royal Society of Chemistry. f) Infrared to thermal conversion model in Au electrodes, g) structure of pyroelectric sensor, [90] h) structure of pyroelectric device, and i) ionic thermoelectric (iTE) device, j) integrated pyro-iTE device. [89] addition of plasmonic nanocages to a pyroelectric polymer can not only induce local heating to provide a larger pyroelectric response but can also be used for micropatterning during processing by exploiting the localized heating of the plasmonic nanoparticles.…”

Section: Infrared Detectors and Photodetectorsmentioning

confidence: 99%

Section: Applications Of Plasmonic‐pyroelectric Materials and Structuresmentioning

confidence: 99%

“…More recently, a thin film poly(vinylidene fluoride‐trifluoroethylene) ferroelectric copolymer (PVDF/TrFE) with interdigitated comb‐like electrodes (IDT) was prepared by controlling the level of polarization via an electric field that was applied during annealing. [ 90 ] The IDT structure and resulting infrared sensor are shown in Figure 5f,g, respectively. The infrared illumination of the IDT structure led to localized heating, aided by plasmonic photothermal heating from the Au electrode that triggered a pyroelectric response from the ferroelectric PVDF/TrFE.…”

Section: Applications Of Plasmonic‐pyroelectric Materials and Structuresmentioning

confidence: 99%

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Plasmonic‐Pyroelectric Materials and Structures

Wang,

Bowen,

Valev

2024

Adv Funct Materials

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With the growing global energy crisis, research into new energy materials that can potentially transfer heat into electricity has become a worldwide imperative. Pyroelectric materials are polar materials that are able to produce electrical charge in response to temperature change. These materials are of interest for infrared sensing, energy harvesting, and emerging applications in chemistry and biology. However, unlocking their potential requires the temperature changes to be both large and rapid. To achieve this goal, pyroelectric materials can be used in synergy with plasmonic nanomaterials, which provide highly localized and rapid heating upon illumination at the plasmonic resonances. Plasmonic‐pyroelectric combinations are therefore being used for a variety of electrical, thermal, electrochemical, and biological studies and are inspiring new technological applications. In this review, the underlying mechanisms of the pyroelectric and plasmonic effects are introduced and the benefits of combining them are outlined. A range of applications is then overviewed. Critical challenges and future perspectives to further develop the underlying science of these systems and to create highly efficient plasmonic‐pyroelectric materials and structures are discussed.

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Section: Infrared Detectors and Photodetectorsmentioning

confidence: 99%

Section: Applications Of Plasmonic‐pyroelectric Materials and Structuresmentioning

confidence: 99%

Section: Applications Of Plasmonic‐pyroelectric Materials and Structuresmentioning

confidence: 99%

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Plasmonic‐Pyroelectric Materials and Structures

Wang,

Bowen,

Valev

2024

Adv Funct Materials

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“…The Curie transition can also be regulated via controlled polarization by applying electric field. Sutani et al 149 applied a low electric field (7.7 MV m À1 ) and traced the F I G U R E 8 Variation of Curie and melting temperatures with composition. Bars denote the entire range of temperatures over which X-ray changes were observed (i.e., from beginning to end of transformation), while circles represent the temperatures of maximal rate of transformation.…”

Section: Electrical Polingmentioning

confidence: 99%

“…The Curie transition can also be regulated via controlled polarization by applying electric field. Sutani et al 149 applied a low electric field (7.7 MV m −1 ) and traced the changing process of chain structure during crystallization of P(VDF‐TrFE) from the melt through conducting FTIR interval measurements. In the cooling process of a P(VDF‐TrFE) thin film without an applied electric field, the CF 2 antisymmetric stretching vibration and CH 2 wagging vibration shift from tgtg' structure to tttt crystal structure.…”

Section: Influencing Factors On the Polymorphic Phasesmentioning

confidence: 99%

The tuning of crystallization behavior of ferroelectric poly(vinylidene fluoride‐co‐trifluoroethylene)

Bai,

Li,

Chu

et al. 2023

Journal of Polymer Science

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Poly (vinylidene fluoride‐co‐trifluoroethylene) [P(VDF‐TrFE)] has three crystal forms, including paraelectric α, ferroelectric β, and γ phases. In previous studies, the properties and performances of P(VDF‐TrFE) have been the focus of research. However, the formation mechanism and regulation mode of various crystal forms remain unclear. Therefore, it is an important topic for further research to elucidate, summarize, and prospect the polymorphism of P(VDF‐TrFE) and regulate the crystal forms. This review systematically summarizes the crystalline structure and phase transition between ferroelectric and paraelectric phase of P(VDF‐TrFE) crystals; discusses the influence of annealing, blending and electric field on the crystallinity, selection of polymorphic crystals, and phase transition behavior between them; reviews the effects of annealing, melt‐recrystallization, substrate and nanoconfinement on the crystal orientation. Finally, the effects of the crystal structure of P(VDF‐TrFE) on its properties are briefly summarized.

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Enhanced Pyroelectricity Over Extended Thermal Range in Flexible Polymer Thin Films

Xie,

Housseini,

Resende

et al. 2024

Adv Funct Materials

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Polymer‐based pyroelectric thin films are crucial functional materials at the core of flexible and lightweight electronic devices, such as wearable monitoring sensors, energy harvesters, and infrared detectors. Nevertheless, the pyroelectric properties of the polymer films, such as poly(vinylidene fluoride‐trifluoroethylene) (P(VDF‐TrFE)), vanish when the surrounding temperature exceeds the ferroelectric‐to‐paraelectric transition temperature, and thus limits their pyroelectric performance to a low‐temperature range. Herein, to mitigate this issue by employing a new class of P(VDF‐TrFE) copolymer which has a low TrFE molar content is proposed. Fine‐tuning of the structure through thermal annealing in a vacuum environment significantly favors robust and highly polarized polymer films with a large area. Electric poling combined with an optimal annealing temperature (110–120 °C) gives highly ordered ferroelectric crystalline domains in the polymer films. Consequently, this remarkably broadens the temperature range (roughly up to 140 °C) for which the polymer film still presents high pyroelectric properties (pyroelectric coefficient 50 µC (m2K)−1). This study provides an alternative choice for pyroelectric polymer films with enhanced pyroelectricity in applications that require wider temperature ranges.

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Formation mechanism of ferroelectric poly (vinylidene fluoride-trifluoroethylene) copolymers with in-plane dipole alignment under low electric field from melt and its SPR based pyroelectric sensor

Cited by 8 publications

References 42 publications

Plasmonic‐Pyroelectric Materials and Structures

Plasmonic‐Pyroelectric Materials and Structures

The tuning of crystallization behavior of ferroelectric poly(vinylidene fluoride‐co‐trifluoroethylene)

Enhanced Pyroelectricity Over Extended Thermal Range in Flexible Polymer Thin Films

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