Molecular dynamics and thermal hysteresis loops of the 60/40 vinylidene fluoride–trifluoroethylene ferroelectric copolymer

2002 ◽  
Vol 65 (10) ◽  
Author(s):  
E. López Cabarcos ◽  
A. F. Braña ◽  
B. Frick ◽  
F. Batallan
Keyword(s):  
Molecular Dynamics ◽  
Vinylidene Fluoride ◽  
Thermal Hysteresis ◽  
Hysteresis Loops

Fabrication and Characterization of Ferroelectric Polymer/TiO2/Al-doped ZnO Structures

2008 ◽  
Vol 1071 ◽  
Author(s):  
Koji Aizawa
Keyword(s):  
Leakage Current ◽  
Vinylidene Fluoride ◽  
Ferroelectric Properties ◽  
Hysteresis Loops ◽  
Tio2 Films ◽  
Gate Leakage Current ◽  
Poly Vinylidene Fluoride ◽  
Doped Zno ◽  
Fabrication And Characterization

AbstractCharacterization of 700-nm-thick poly(vinylidene fluoride/trifluoroethylene) [P(VDF/TrFE)]/TiO2/Al-doped ZnO (AZO) structures on a glass substrate were investigated. In this study, the sputtered TiO2 films as insulator were used for the reduction of leakage current. The leakage current density of the fabricated Pt/P(VDF/TrFE)/AZO and Pt/P(VDF/TrFE)/170-nm-thick TiO2/AZO structures were approximately 8.7 and 3.9 nA/cm2 at the applied voltage of 10 V, respectively. In the polarization vs. voltage characteristics, the fabricated Pt/P(VDF/TrFE)/TiO2/AZO structures showed hysteresis loops caused by ferroelectric polarization. The remnant polarization (2Pr) and coercive voltage (2Vc) measured from a saturated hysteresis loop at the frequency of 50 Hz were approximately 12 μC/cm2 and 105 V, respectively. These results suggest that the insertion of TiO2 film is available for reducing the gate leakage current without changing the ferroelectric properties.

Molecular investigation of oil–water separation using PVDF polymer by molecular dynamic simulation

RSC Advances ◽  
2016 ◽  
Vol 6 (78) ◽  
pp. 74124-74134 ◽  
Author(s):  
Mehdi Darvishi ◽  
Masumeh Foroutan
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Vinylidene Fluoride ◽  
Dynamics Simulation ◽  
Water Separation ◽  
Molecular Investigation ◽  
Poly Vinylidene Fluoride ◽  
Adsorption Of Water ◽  
Oil Water Separation ◽  
Oil Water

In this study, adsorption of water nanodroplets, oil nanodroplets and oil–water mixtures on a poly vinylidene fluoride (PVDF) surface is investigated using molecular dynamics simulation and a mechanism for adsorption of the droplets is proposed.

Compensation effects and relation between the activation energy of spin transition and the hysteresis loop width for an iron(ii) complex

2016 ◽  
Vol 18 (25) ◽  
pp. 16690-16699 ◽  
Author(s):  
Mark B. Bushuev ◽  
Denis P. Pishchur ◽  
Elena B. Nikolaenkova ◽  
Viktor P. Krivopalov
Keyword(s):  
Hysteresis Loop ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Activation Barrier ◽  
Spin Transition ◽  
Hysteresis Loops ◽  
High Activation ◽  
Activation Barriers ◽  
Spin Crossover Complexes ◽  
Hysteresis Loop Width

Wide thermal hysteresis loops for iron(ii) spin crossover complexes are associated with high activation barriers: the higher the activation barrier, the wider the hysteresis loop for a series of related spin crossover systems.

Molecular Dynamics Study on Wettability of Poly(vinylidene fluoride) Crystalline and Amorphous Surfaces

Langmuir ◽  
2018 ◽  
Vol 34 (40) ◽  
pp. 12214-12223 ◽  
Author(s):  
Masahiro Kitabata ◽  
Tseden Taddese ◽  
Susumu Okazaki
Keyword(s):  
Molecular Dynamics ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride
Sign in / Sign up

Export Citation Format

Share Document