Comparative Study of Sb2O3 (Sb2O5) and Ta2O5 Doping Effects with TeO2 on Electrical Properties of δ-Bi2O3

被引：0

作者：

Loubbidi, L. ^{[1
]}

Chagraoui, A. ^{[1
]}

Villain, S. ^{[2
]}

Bourja, L. ^{[1
]}

Orayech, B. ^{[3
]}

Ahmed, O. Ait Sidi ^{[1
]}

Moussaoui, A. ^{[1
]}

Tairi, A. ^{[1
]}

机构：

[1] Univ Hassan 2, Fac Sci Ben MSik, Lab Chim Analyt & Physicochim Mat LCAPM, Casablanca, Morocco

[2] Lab IM2NP, Ave Univ Toulon Var BP 20132,Batiment R83957, Toulon, France

[3] CIC Energigune, Parque Tecnol,C Albert Einstein 48, Minano 01510, Alava, Spain

来源：

ACTA PHYSICA POLONICA A | 2016年 / 130卷 / 04期

关键词：

OXIDE-ION CONDUCTION; STABILIZED DELTA-BI2O3; THIN-FILMS; BI2O3; PHASE; NANOSTRUCTURES; CERIA;

D O I：

10.12693/APhysPolA.130.862

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this study, Sb2O3 (Sb2O5) and Ta2O5 are used as co-dopants with TeO2 to stabilize the delta phase of bismuth oxide (delta-Bi2O3). Some compositions with formula (1 x) BiO1.5-(x /4) Sb2Te2O9 and (1 - x) BiO1.5-(x/4) Ta2Te2O9 (x = 0.1, 0.2, 0.3, 0.6, and 0.9) have been synthesized by solid state reaction at 850 degrees C and characterized by powder X-ray diffraction. The Bi0.9Sb0.05Te0.05O1.575, Bi0.9Ta0.05Te0.05O1.575 and Bi0.8Ta0.1Te0.1O1.65 retain a cubic fluorite structure of delta-Bi2O3 phase. The electric properties were studied by impedance spectroscopy. All samples were evaluated by calculating conductivities and activation energies. Various impedance model including constant phase element and the Warburg impedances have been used to interpret the Nyquist representations of electrical analyses.

引用

页码：862 / 865

页数：4

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