New insights into the 6H-type hexagonal perovskite solid solution BaTiO3−δ: Influence of acceptor and donor doping on crystal structure and electrical properties

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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Microstructure-dependent electrical properties of Bi0.5Na0.5TiO3–BaTiO3–SrTiO3 ternary solid solution

Journal of Materials Science Materials in Electronics ◽

10.1007/s10854-021-05376-w ◽

2021 ◽

Vol 32 (5) ◽

pp. 6607-6622

Author(s):

Lagen Kumar Pradhan ◽

Suman Kumari ◽

Murli Kumar Manglam ◽

Rabichandra Pandey ◽

Manoranjan Kar

Keyword(s):

Solid Solution ◽

Electrical Properties ◽

Ternary Solid Solution

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Crystal structure of U1-yLnyO2-x (Ln = Gd, Er) solid solution

Journal of Nuclear Materials ◽

10.1016/j.jnucmat.2021.153189 ◽

2021 ◽

pp. 153189

Author(s):

Pham Van Mao ◽

Tatsumi Arima ◽

Yaohiro Inagaki ◽

Kazuya Idemitsu ◽

Daisuke Akiyama ◽

...

Keyword(s):

Crystal Structure ◽

Solid Solution

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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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