Crystal structure and electrical properties of a new triple molybdate Na0.45K1.55Cu3(MoO4)4

Poly(3,4-ethylenedioxythiophene) (PEDOT) was chemically synthesized, undoped and then re-doped using FeCl3 as well as camphorsulfonic acid (CSA). FT-IR results confirm the nature of the synthesized and doped samples. XRD analysis indicates crystal structure modification after doping and was also used to calculate crystallinity of samples. Crystallinity increases after FeCl3 doping, whereas it reduces due to CSA doping. TGA-DTA results show reduction in Tg value for FeCl3 doped sample while it increases for CSA doped samples compared to that of undoped PEDOT. Reduction in Tg indicates plasticizing effect of FeCl3 whereas increase in Tg show anti-plasticizing effect of CSA in PEDOT. Conductivity value () increases by two orders of magnitude after doping. Log vs. 1/T graph show metallic nature of undoped PEDOT above 308 K, however both doped samples show semiconducting nature from 301 to 383 K.

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Crystal structure of new one-dimensional triple molybdate Na2K2Cu(MoO4)3

Журнал структурной химии ◽

10.26902/jsc20180515 ◽

2018 ◽

Vol 59 (5) ◽

Keyword(s):

Crystal Structure ◽

One Dimensional ◽

Triple Molybdate

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The crystal structures of free radical salts and complexes. X. The crystal structure and electrical properties of [1,2-di(N-benzyl-4-pyridinium)ethylene]2+(7,7,8,8-tetracyanoquinodimethane)5 2−

Acta Crystallographica Section B ◽

10.1107/s0567740877008115 ◽

1977 ◽

Vol 33 (7) ◽

pp. 2258-2263 ◽

Cited By ~ 19

Author(s):

G. J. Ashwell ◽

D. D. Eley ◽

A. Harper ◽

A. C. Torrance ◽

S. C. Wallwork ◽

...

Keyword(s):

Crystal Structure ◽

Free Radical ◽

Electrical Properties ◽

Crystal Structures

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Temperature Dependence of Electrical Properties and Crystal Structure of 0.29Pb(In1/2Nb1/2)O3–0.44Pb(Mg1/3Nb2/3)O3–0.27PbTiO3Single Crystals

Advances in Condensed Matter Physics ◽

10.1155/2013/382140 ◽

2013 ◽

Vol 2013 ◽

pp. 1-5

Author(s):

Qian Li ◽

Yun Liu ◽

Andrew Studer ◽

Zhenrong Li ◽

Ray Withers ◽

...

Keyword(s):

Crystal Structure ◽

Phase Transition ◽

Electrical Properties ◽

Dielectric Permittivity ◽

Neutron Diffraction ◽

Electrical Measurement ◽

Temperature Dependent ◽

Electromechanical Properties ◽

Polar Order

We characterized the temperature dependent (~25–200°C) electromechanical properties and crystal structure of Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3single crystals usingin situelectrical measurement and neutron diffraction techniques. The results show that the poled crystal experiences an addition phase transition around 120°C whereas such a transition is absent in the unpoled crystal. It is also found that the polar order persists above the maximum dielectric permittivity temperature at which the crystal shows a well-defined antiferroelectric behavior. The changes in the electrical properties and underlying crystal structure are discussed in the paper.

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