Functionalized graphene–BaTiO3/ferroelectric polymer nanodielectric composites with high permittivity, low dielectric loss, and low percolation threshold

Wang, Dongrui; Zhou, Tao; Zha, Jun‐Wei; Zhao, Jun; Shi, Chen; Dang, Zhi‐Min

doi:10.1039/c3ta10460e

Cited by 182 publications

(103 citation statements)

References 39 publications

Supporting

Mentioning

100

Contrasting

Order By: Relevance

“…Peak (435) indicates stock line that is not defined as polymer or nTiO 2 ; it may indicate percolation threshold and tunneling effect [18] that may take place within SR8100/nTiO 2 PMNC. Finally (585) peak refers to nTiO 2 and/or deformation of C-C and C-O [19,22,23]. The Raman shift results of this work are in agreement with FTIR results shown in Fig.…”

Section: Resultssupporting

confidence: 82%

“…According to this fact we may distinguish two types of Raman shift peaks; (i) the repeated peaks that appear in SR8100/ nTiO 2 PMNC specimen with 1-4 wt% nTiO 2 , which are as follow, peak at (100) which is related to symmetric stretching of C=O, (275,267 and 278) peaks indicate the stretching mode of C-H bond, (333,336) refer to a combination of C-O stretching and O-H deformation, peaks at 437,438 refer to nTiO 2 , and/or stretching mode of saturated C-O, it may also refer to a slight entrance between SR8100 polymer matrix and nTiO 2 filler. Peaks (488,489,490) all refer to the presence of nTiO 2 phase, while (552,581,582,585) peaks indicate the deformation of C-H and C-O-H, ring deformation of polymer matrix and nTiO 2 presence [18,19]. Raman shift of 5 wt% nTiO 2 shows completely different peaks than the other SR8100/nTiO 2 PMNC specimens.…”

Section: Resultsmentioning

confidence: 95%

See 1 more Smart Citation

Raman shift of silicon rubber-nano titania PMNC

Mutoki¹,

Ghzawi²,

Amohsin³

et al. 2017

Epitoanyag - JSBCM

View full text Add to dashboard Cite

raman shift, Ftir spectra and sem were used to detect the percolation threshold of nano titania filler ceramic ntio 2 dispersed in a silicon rubber matrix sr8100 by hot vibrate dispersion. it has been found that an additional frequencies, and stock lines appears in raman shift when ntio 2 reach (5)wt% which mean a change in polarity of the sr8100/ntio 2 Pmnc polarity. keywords: Pmnc, nano ceramic oxide fillers, ntio 2 , raman shift

show abstract

Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 95%

Raman shift of silicon rubber-nano titania PMNC

Mutoki¹,

Ghzawi²,

Amohsin³

et al. 2017

Epitoanyag - JSBCM

View full text Add to dashboard Cite

show abstract

“…Therefore, a great deal of attention has been given to the development and processing of polymer composites. Figure 14a- [43,44]. Also, the interfacial polarization operates at lower frequencies and it is always present in polymer composites due to the presence of fillers and additives [45].…”

Section: Dielectric Properties Of Pedot-tma/pmma/ Go Compositesmentioning

confidence: 95%

Embedded capacitor applications of graphene oxide reinforced poly(3,4-ethylenedioxythiophene)-tetramethacrylate (PEDOT-TMA) composites

Deshmukh

Joshi

2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

We report synthesis and characterizations of graphene oxide (GO) reinforced poly(3,4-ethylene dioxythiophene)-tetra methacrylate (PEDOT-TMA)/polymethylmethacrylate (PMMA) based novel composites. The composites were prepared by colloidal blending. The interaction between GO, PEDOT-TMA and PMMA chains were characterized by using UV-Vis spectroscopy, X-ray diffraction, thermogravimetric analysis, Fourier transforms infrared spectroscopy, FT-Raman spectroscopy, atomic force microscopy (AFM) and scanning electron microscopy. The microstructure of composites shows that GO was homogeneously dispersed in the polymer matrix. AFM studies reveal an increase in surface roughness as a function of GO loading. A significant improvement in the thermal stability of composites was observed as a function of GO loading which is due to the presence of high surface area GO in the polymer matrix. The composites show high values of dielectric constant and low values of dielectric loss which resulted from homogeneous dispersion of GO in the polymer matrix. This study suggests that the composites have the potential to be used for suitable electronic applications with desired dielectric properties.

show abstract

“…In recent years, much attention has been paid to developing high energy-storage density polymer capacitors due to their potential applications in fields such as backup power sources for electronic components, pulsed power sources and power sources for electronic cars [1][2][3]. Polymer capacitors have some advantages such as fast charge/discharge (o 1 μs), high working voltage, simplified processing and low cost [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%