scholarly journals High Dielectric Constant Study of TiO2-Polypyrrole Composites with Low Contents of Filler Prepared byIn SituPolymerization

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Khalil Ahmed ◽  
Farah Kanwal ◽  
Shahid M. Ramay ◽  
Asif Mahmood ◽  
Shahid Atiq ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
Filler Content ◽  
Aqueous Dispersion ◽  
Gravimetric Analysis ◽  
X Ray ◽  
Crystalline Nature ◽  
High Dielectric ◽  
Thermal Stability Of

TiO2/polypyrrole composites with high dielectric constant have been synthesized byin situpolymerization of pyrrole in an aqueous dispersion of low concentration of TiO2, in the presence of small amount of HCl. Structural, optical, surface morphological, and thermal properties of the composites were investigated by X-ray diffractometer, Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, and thermogravimetric analysis, respectively. The data obtained from diffractometer and thermal gravimetric analysis confirmed the crystalline nature and thermal stability of the prepared composites. The dielectric constant of 5 wt% TiO2increased with filler content up to 4.3 × 103at 1 kHz and then decreased to 1.25 × 103at 10 kHz.

scholarly journals Preparation of graphene/polypropylene composites with high dielectric constant and low dielectric loss via constructing a segregated graphene network

RSC Advances ◽  
2021 ◽  
Vol 11 (60) ◽  
pp. 38264-38272
Author(s):  
Lijing Han ◽  
Hairui Wang ◽  
Qi Tang ◽  
Xiurui Lang ◽  
Xuemeng Wang ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Dielectric Loss ◽  
High Dielectric Constant ◽  
Filler Content ◽  
Latex Particles ◽  
Polypropylene Composites ◽  
Low Dielectric ◽  
Pp Composites ◽  
High Dielectric

The rGO/PP composites with high dielectric constant and low dielectric loss at a low filler content were prepared via constructing a segregated graphene network by encapsulating of GO on PP latex particles and the in situ reduction in GO.

scholarly journals In situ synthesis of high dielectric constant GNPs/PBO nanocomposites with enhanced thermostability

2019 ◽  
Vol 2 (3) ◽  
pp. 97-102 ◽  
Author(s):  
Yi Chen ◽  
Zhen Kong ◽  
Wenqi Chen ◽  
Lv Xiao ◽  
Yong Yuan ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
In Situ Synthesis ◽  
High Dielectric

scholarly journals X-ray spectroscopic study of the electronic structure of the high-dielectric-constant materialCaCu3Ti4O12

2005 ◽  
Vol 71 (19) ◽  
Author(s):  
Cormac McGuinness ◽  
James E. Downes ◽  
Paul Sheridan ◽  
P.-A. Glans ◽  
Kevin E. Smith ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Electronic Structure ◽  
Spectroscopic Study ◽  
High Dielectric Constant ◽  
X Ray ◽  
High Dielectric

scholarly journals Boosting performances of triboelectric nanogenerators by optimizing dielectric properties and thickness of electrification layer

RSC Advances ◽  
2020 ◽  
Vol 10 (30) ◽  
pp. 17752-17759 ◽  
Author(s):  
Xiaofang Kang ◽  
Chongxiang Pan ◽  
Yanghui Chen ◽  
Xiong Pu
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
High Dielectric Constant ◽  
Filler Content ◽  
Triboelectric Nanogenerator ◽  
Triboelectric Nanogenerators ◽  
High Dielectric

Enhanced output performances of a triboelectric nanogenerator (TENG) are achieved by optimizing the high-dielectric-constant filler content in the electrification layer and decreasing its thickness.

In situ preparation of high dielectric constant, low-loss ferroelectric BaTiO3 films on Si at 500°C

2013 ◽  
Vol 270 ◽  
pp. 319-323 ◽  
Author(s):  
Meiling Yuan ◽  
Wei Zhang ◽  
Xianyang Wang ◽  
Wei Pan ◽  
Li Wang ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
Low Loss ◽  
In Situ Preparation ◽  
High Dielectric

Performance and Reliability of thin Gate Dielectrics for VLSI: Materials and Processing Perspective

1986 ◽  
Vol 71 ◽  
Author(s):  
R. Singh
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
Gate Dielectric ◽  
Dielectric Material ◽  
Gate Dielectrics ◽  
Current Trends ◽  
High Dielectric ◽  
Rapid Isothermal Processing ◽  
Gate Dielectric Material

AbstractCurrent trends are in the direction of submicron MOSFETs employing gate dielectrics in the thickness range of about 30 - 100A°. The performance and reliability of submicron MOSFETs can be improved by using high dielectric constant gate dielectric material. A new concept involving 2 or more dielectric material is proposed in this paper. In- situ rapid isothermal processing is proposed for the fabrication of thin gate dielectrics.

Impedance and Dielectric Properties of PANI/V2O5 Nano Composites

2017 ◽  
Vol 6 (1) ◽  
pp. 76-79
Author(s):  
B. Chakradhar Sridhar ◽  
M. V. N. Ambika Prasad
Keyword(s):  
Dielectric Constant ◽  
High Dielectric Constant ◽  
Relaxation Mechanism ◽  
Single Step ◽  
Nano Composites ◽  
Frequency Range ◽  
Conducting Polyaniline ◽  
High Dielectric ◽  
Technological Interest

The conducting Polyaniline/Vanadium Pentoxide (PANI/V2O5) composites were synthesized by single step in situ polymerization technique with 10, 20, 30, 40 and 50 wt% of V2O5 in polyaniline. The composites thus formed were characterized by Fourier infrared spectroscopy (FTIR), which confirmed the presence of V2O5 in polyaniline matrix and the formation of the composite. The AC conductivity has been studied in the frequency range of 50 Hz to 1 MHz and it is found that 40 wt% shows high conductivity compare to pure polyaniline and other composites. The high dielectric constant, which is related to polarization. It is seen that both dielectric constant and dielectric loss decrease with increase in frequency. The variation of impedance as a function of frequency suggesting nearly Debye-type relaxation mechanism. The results obtained for these composites are of scientific and technological interest.

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