Ferroelectric poly(vinylidene fluoride) thin films on Si substrate with the β phase promoted by hydrated magnesium nitrate

2007 ◽  
Vol 102 (10) ◽  
pp. 104108 ◽  
Author(s):  
Shuting Chen ◽  
Kui Yao ◽  
Francis Eng Hock Tay ◽  
Chung Lee Liow
Keyword(s):  
Thin Films ◽  
Vinylidene Fluoride ◽  
Magnesium Nitrate ◽  
Si Substrate ◽  
Β Phase ◽  
Poly Vinylidene Fluoride

Enhancement of β phase crystallization and dielectric behavior of kaolinite/halloysite modified poly(vinylidene fluoride) thin films

2014 ◽  
Vol 99 ◽  
pp. 149-159 ◽  
Author(s):  
Pradip Thakur ◽  
Arpan Kool ◽  
Biswajoy Bagchi ◽  
Sukhen Das ◽  
Papiya Nandy
Keyword(s):  
Thin Films ◽  
Vinylidene Fluoride ◽  
Dielectric Behavior ◽  
Β Phase ◽  
Poly Vinylidene Fluoride

The role of cerium(iii)/yttrium(iii) nitrate hexahydrate salts on electroactive β phase nucleation and dielectric properties of poly(vinylidene fluoride) thin films

RSC Advances ◽  
2015 ◽  
Vol 5 (36) ◽  
pp. 28487-28496 ◽  
Author(s):  
Pradip Thakur ◽  
Arpan Kool ◽  
Biswajoy Bagchi ◽  
Nur Amin Hoque ◽  
Sukhen Das ◽  
...  
Keyword(s):  
Thin Films ◽  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Nitrate Hexahydrate ◽  
Yttrium Nitrate ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Phase Nucleation ◽  
Yttrium Nitrate Hexahydrate

Electroactive β phase nucleation in cerium/yttrium nitrate hexahydrate salt modified PVDF thin filmsviaformation of hydrogen bonds.

Immobilized ionic liquid induced electroactive β-phase in poly(vinylidene fluoride) thin films

Polymer ◽  
2019 ◽  
Vol 181 ◽  
pp. 121784 ◽  
Author(s):  
Shumin Yang ◽  
Fang Wang ◽  
Xiaohui Li ◽  
Yangjiang Wu ◽  
Tongxin Chang ◽  
...  
Keyword(s):  
Thin Films ◽  
Ionic Liquid ◽  
Vinylidene Fluoride ◽  
Β Phase ◽  
Poly Vinylidene Fluoride

Improvement of electroactive β phase nucleation and dielectric properties of WO3·H2O nanoparticle loaded poly(vinylidene fluoride) thin films

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62819-62827 ◽  
Author(s):  
Pradip Thakur ◽  
Arpan Kool ◽  
Biswajoy Bagchi ◽  
Nur Amin Hoque ◽  
Sukhen Das ◽  
...  
Keyword(s):  
Thin Films ◽  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Nucleation Mechanism ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Phase Nucleation

Electroactive β phase nucleation mechanism and promising dielectric properties of WO3·H2O nanoparticle loaded PVDF thin films.

A STUDY ON THERMO-OPTIC EFFECT OF β POLY(VINYLIDENE FLUORIDE) THIN FILMS PREPARED BY SOLUTION CASTING METHOD

2008 ◽  
Vol 15 (01n02) ◽  
pp. 175-181 ◽  
Author(s):  
YINGXUE XI ◽  
HUIQING FAN ◽  
WEIGUO LIU ◽  
CHEN YANG ◽  
XIAOLING NIU
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Infrared Imaging ◽  
Vinylidene Fluoride ◽  
Treatment Temperature ◽  
X Ray Diffraction ◽  
Long Wavelength ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Solution Casting Method

The Poly(vinylidene) fluoride (PVDF) thin films with a high content of β-phase were prepared by controlling heat-treatment temperature using casting from the poled solvents. The crystallite microstructure of thin films was depicted by the techniques of X-ray diffraction and FTIR. The results showed that heat treatment was favorable for inducing the β- and γ-phase formation of PVDF. The β phase films were obtained with heat treatment at temperatures ranging from 60°C to 120°C and annealing at 120°C after casting from DMF. The thermo-optical effect of β phase PVDF films was investigated using a spectroscopic ellipsometer. At temperatures ranging from 20°C to 100°C, the refractive index of PVDF was negatively correlated with the temperature between 350 and 1500 nm. The value of the t.o. coefficient of PVDF films was calculated at all temperatures. The maximum value of the t.o. coefficient was about 3.3 × 10-4/°C at the ascending stage of temperature and 3.0 × 10-4/°C at the descending stage of temperature. Therefore, it is possible to use the thermo-optic effect of the β phase PVDF for long wavelength infrared imaging.

Effect of in situ synthesized Fe2O3and Co3O4nanoparticles on electroactive β phase crystallization and dielectric properties of poly(vinylidene fluoride) thin films

2015 ◽  
Vol 17 (2) ◽  
pp. 1368-1378 ◽  
Author(s):  
Pradip Thakur ◽  
Arpan Kool ◽  
Biswajoy Bagchi ◽  
Sukhen Das ◽  
Papiya Nandy
Keyword(s):  
Thin Films ◽  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Dielectric Constants ◽  
Β Phase ◽  
Poly Vinylidene Fluoride

In situsynthesis of Fe2O3–Co3O4nanoparticles stabilized electroactive PVDF thin films with colossal dielectric constants.

Improving the thermal stability, electroactive β phase crystallization and dielectric constant of NiO nanoparticle/C–NiO nanocomposite embedded flexible poly(vinylidene fluoride) thin films

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 26288-26299 ◽  
Author(s):  
Pradip Thakur ◽  
Arpan Kool ◽  
Nur Amin Hoque ◽  
Biswajoy Bagchi ◽  
Swagata Roy ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Dielectric Constant ◽  
Vinylidene Fluoride ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Phase Nucleation ◽  
Nio Nps ◽  
High Dielectric

Increasing β phase nucleation and formation of microcapacitors in flexible high dielectric NiO NPs/C–NiO NCs modified PVDF films.

scholarly journals β phase instability in poly(vinylidene fluoride/trifluoroethylene) thin films near β relaxation temperature

2015 ◽  
Vol 106 (9) ◽  
pp. 092902 ◽  
Author(s):  
B. B. Tian ◽  
X. F. Bai ◽  
Y. Liu ◽  
P. Gemeiner ◽  
X. L. Zhao ◽  
...  
Keyword(s):  
Thin Films ◽  
Vinylidene Fluoride ◽  
Phase Instability ◽  
Β Phase ◽  
Relaxation Temperature ◽  
Poly Vinylidene Fluoride ◽  
Β Relaxation
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