Study of enhanced dielectric permittivity of functionalize multiwall carbon nanotube-based polyvinylidene fluoride free-standing film for flexible storage device

Das, Amit Kumar; Raul, Chandan Kumar; Karmakar, Riju; Meikap, Ajit Kumar

doi:10.1016/j.physleta.2021.127455

Cited by 9 publications

(4 citation statements)

References 35 publications

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“…It can be represented by a modified Kohlrausche–Williams–Watts (KWW) function and the imaginary part of the dielectric modulus can be written as follows. 74–77 where, f m is the peak frequency, ‘ M m // ’ is the peak value of the modulus, and ‘ a ’ and ‘ b ’ are the shape parameters. The extracted values of ‘ a ’ and ‘ b ’ values are 0.557, 0.647, 0.769, 1.014 and 0.298, 0.32, 0.366, 0.339 for the PZ0.5, PZ1, PZ2, and PZ4 samples, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Tunable, reversible resistive switching behavior of PVA-zirconia nanocomposite films and validation of the trap-assisted switching mechanism by the selective application of external bias voltages

Karmakar

Das

Dutta

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Resultsmentioning

confidence: 99%

“…It can be represented by a modified Kohlrausche-Williams-Watts (KWW) function and the imaginary part of the dielectric modulus can be written as follows. [74][75][76][77]…”

Section: Analysis Of the Photoluminescence (Pl) Spectramentioning

confidence: 99%

Tunable, reversible resistive switching behavior of PVA-zirconia nanocomposite films and validation of the trap-assisted switching mechanism by the selective application of external bias voltages

Karmakar

Das

Dutta

et al. 2023

Phys. Chem. Chem. Phys.

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“…[ 3–6 ] Ceramic‐based dielectric materials are widely used in electronic components in communication, military, and other related fields due to their extremely high dielectric permittivity. [ 7–9 ] However, the complex preparation process, high processing temperature, brittleness, and low breakdown strength of ceramics greatly limit their application range. [ 10 ]…”

Section: Introductionmentioning

confidence: 99%

“…[3][4][5][6] Ceramic-based dielectric materials are widely used in electronic components in communication, military, and other related fields due to their extremely high dielectric permittivity. [7][8][9] However, the complex preparation process, high processing temperature, brittleness, and low breakdown strength of ceramics greatly limit their application range. [10] Polymers are the industrial choice of dielectric materials for charge storage applications mainly because of their high breakdown strength and excellent processability.…”

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confidence: 99%

Lightweight and Highly Heat‐Resistant Microcellular Polyetherimide/Barium Titanate/Carbon Nanotube Nanocomposites with High Dielectric Permittivity and Low Dielectric Loss

Xiang

Jing

et al. 2021

Adv Eng Mater

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Dielectric materials can be used to control/ store charge and electric energy, which has important potential application value for the dielectric energy storage and intelligent sensing in areas such as aerospace, electronics, and military engineering. [1,2] The dielectric materials with high dielectric permittivity (ε 0 ) and low dielectric loss (tanδ) are of great significance to national security defense and economic development. [3][4][5][6] Ceramic-based dielectric materials are widely used in electronic components in communication, military, and other related fields due to their extremely high dielectric permittivity. [7][8][9] However, the complex preparation process, high processing temperature, brittleness, and low breakdown strength of ceramics greatly limit their application range. [10] Polymers are the industrial choice of dielectric materials for charge storage applications mainly because of their high breakdown strength and excellent processability. Nevertheless, it is a great challenge that the pure polymers always have a very low dielectric permittivity. [11][12][13] Therefore, the high dielectric composite materials obtained by integrating high dielectric particles and polymers in a certain physical/chemical way have great application prospects. One common approach is to add ceramic fillers such as barium titanate (BaTiO 3 ), barium strontium titanate (Ba x Sr 1-x TiO 3 ), and calcium copper titanate (CaCu 3 Ti 4 O 12 ) to the polymers to improve their dielectric properties. [14][15][16][17] However, a higher dielectric permittivity usually requires a higher loading of ceramic filler, which affects the machinability and mechanical strength of the composites. Another approach is to add conductive fillers such as Cu, Ag, graphene, and carbon nanotubes (CNTs) to the polymers, which can obtain very high dielectric permittivity at a low conductive filler loading. [18][19][20][21][22][23] Unfortunately, the conductive fillers are prone to agglomerate, resulting in excessive leakage current, which will cause the sharp increase in dielectric loss of the conductive filler/polymer composites. In recent years, researchers have been keen to combine

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Dielectric and magneto-dielectric properties of nickel-coated multiwalled carbon nanotube filler-reinforced poly(vinylidene fluoride) flexible films

Raul

Halder²,

Atta

et al. 2023

J Mater Sci: Mater Electron

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Study of enhanced dielectric permittivity of functionalize multiwall carbon nanotube-based polyvinylidene fluoride free-standing film for flexible storage device

Cited by 9 publications

References 35 publications

Tunable, reversible resistive switching behavior of PVA-zirconia nanocomposite films and validation of the trap-assisted switching mechanism by the selective application of external bias voltages

Tunable, reversible resistive switching behavior of PVA-zirconia nanocomposite films and validation of the trap-assisted switching mechanism by the selective application of external bias voltages

Lightweight and Highly Heat‐Resistant Microcellular Polyetherimide/Barium Titanate/Carbon Nanotube Nanocomposites with High Dielectric Permittivity and Low Dielectric Loss

Dielectric and magneto-dielectric properties of nickel-coated multiwalled carbon nanotube filler-reinforced poly(vinylidene fluoride) flexible films

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