Effect of Li and Li-RE co-doping on structure, stability, optical and electrical properties of bismuth magnesium niobate pyrochlore

被引：6
|
作者：
Koroleva, Mariia S. [1 ]
Krasnov, Aleksei G. [1 ]
Senyshyn, Anatoliy [2 ]
Schoekel, Alexander [3 ]
Shein, Igor R. [4 ]
Vlasov, Maxim, I [5 ,6 ]
Piir, Irina, V [1 ]
机构：
[1] Russian Acad Sci, Fed Res Ctr Komi Sci Ctr, Inst Chem, Ural Branch, Syktyvkar 167982, Russia
[2] Tech Univ Munich, Forschungsneutronenquelle Heinz Maier Leibnitz FR, D-85747 Munich, Germany
[3] DESY, D-22607 Hamburg, Germany
[4] Russian Acad Sci, Inst Solid State Chem, Ural Branch, Ekaterinburg 620990, Russia
[5] Russian Acad Sci, Inst High Temp Electrochem, Ural Branch, Ekaterinburg 620137, Russia
[6] Ural Fed Univ, NANOTECH Ctr, Ekaterinburg 620002, Russia
来源：
MATERIALS RESEARCH BULLETIN | 2022年 / 145卷
关键词：
Complex bismuth niobates; Atoms distribution; Ab initio calculation; Thermal stability; Electrical properties; DIELECTRIC-PROPERTIES; ELECTRONIC CONDUCTIVITY; MAGNETIC-STRUCTURE; ION CONDUCTIVITY; PHASE-FORMATION; SINTERING AIDS; OXYGEN; ELECTROLYTES; TRANSPORT; CERAMICS;
D O I：
10.1016/j.materresbull.2021.111520
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
New Bi1.5Mg0.9-xLixNb1.5O7-delta (x = 0.25; 0.40) and Bi1.4RE0.1Mg0.5Li0.4Nb1.5O7-delta (RE - Eu, Ho, Yb) compounds with the pyrochlore structure were synthesized. The displacements of the A-site atoms (96g) and O' ones (32e) as well as the Li and RE atoms distribution in the A-sites were determined. The dopant distribution was proven by ab initio calculations. The most preferable (Bi1.5Li0.5)(Nb1.5Mg0.5)O-7 model was predicted with a direct band gap of 3.18 eV corresponding to the experimental E-g for Bi1.5Mg0.5Li0.4Nb1.5O7-delta. The thermal stability of the compounds in air up to 1100-1220 degrees C and the reducing atmosphere up to 400 degrees C was determined. The charge disbalance in the A(2)O' sublattice and the oxygen vacancies predetermine the dielectric behavior of the ceramics up to 200 degrees C, the mixed conductivity at high temperatures (T > 200 degrees C), and the proton transport up to 400 degrees C.
引用
收藏
页数：11
相关论文
共 50 条
  • [1] Effect of Li doping and Li, La co-doping on the structure and physical properties of LaBa2Cu3Oy
    Liu, B
    Xu, GJ
    Tao, RH
    Xu, Z
    Shen, JQ
    Pu, QR
    Wang, GS
    Ding, ZJ
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2004, 403 (04): : 313 - 318
  • [2] Structural and electrical properties of Mg-Cu- and Mg-Cu-Li-doped bismuth niobate semiconductors with the pyrochlore structure
    Koroleva, Mariia S.
    Krasnov, Aleksei G.
    Osinkin, Denis A.
    Kellerman, Dina G.
    Stoporev, Andrey S.
    V. Piir, Irina
    CERAMICS INTERNATIONAL, 2023, 49 (05) : 7806 - 7813
  • [3] Effect of Codoping on the Electrical Properties of Magnesium- and Copper-Containing Bismuth Niobate with Pyrochlore-Type Structure
    I. V. Piir
    M. S. Koroleva
    V. S. Maksimov
    Russian Journal of General Chemistry, 2023, 93 : 358 - 362
  • [4] Effect of Codoping on the Electrical Properties of Magnesium- and Copper-Containing Bismuth Niobate with Pyrochlore-Type Structure
    Piir, I. V.
    Koroleva, M. S.
    Maksimov, V. S.
    RUSSIAN JOURNAL OF GENERAL CHEMISTRY, 2023, 93 (02) : 358 - 362
  • [5] Structural, Optical, Luminescence, and Electrical Properties of Eu/Li- and Eu/Na-Codoped Magnesium Bismuth Niobate Pyrochlores
    Koroleva, Mariia S.
    V. Ishchenko, Aleksey
    Vlasov, Maxim I.
    Krasnov, Aleksei G.
    Istomina, Elena I.
    Shein, Igor R.
    Weinstein, Ilya A.
    V. Piir, Irina
    INORGANIC CHEMISTRY, 2022, 61 (24) : 9295 - 9307
  • [6] Li- and Mg-codoped bismuth niobate pyrochlores: Synthesis, structure, electrical properties
    Koroleva, M. S.
    Piir, I. V.
    Zhuravlev, N. A.
    Denisova, T. A.
    Istomina, E. I.
    SOLID STATE IONICS, 2019, 332 : 34 - 40
  • [7] Effect of Co-Doping on Magnetic Properties of Bismuth Ferrite
    Makoed, I
    Prigodich, V
    Yanushkevich, K.
    Zhivulko, A.
    Zhivulko, V
    Galias, A.
    Demidenko, O.
    Krivchenya, D.
    ACTA PHYSICA POLONICA A, 2020, 137 (05) : 985 - 988
  • [8] Effects of Li and Y co-doping on electrical properties and dielectric relaxation behavior of BCZT ceramics
    Wang, Chang-Qun
    Shu, Chun
    Zheng, De-Yi
    Luo, Shun
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2022, 33 (07) : 3822 - 3834
  • [9] Effect of thickness on electrical properties of bismuth-magnesium niobate pyrochlore thin films deposited at low temperature
    Xian, Cheng-Ji
    Park, Jong-Hyun
    Yoon, Soon-Gil
    Moon, Jin Seok
    Lim, Sung Taek
    Sohn, Seung Hyun
    Jung, Hyung Mi
    Shin, Yee-na
    Kim, Woon Chun
    Jeon, Min-Ku
    Woo, Seong-Ihl
    JOURNAL OF APPLIED PHYSICS, 2007, 101 (08)
  • [10] Effect of Li+ co-doping on structural and luminescence properties of Mn4+ activated magnesium titanate films
    L. Borkovska
    L. Khomenkova
    I. Markevich
    M. Osipyonok
    T. Stara
    O. Gudymenko
    V. Kladko
    M. Baran
    S. Lavoryk
    X. Portier
    T. Kryshtab
    Journal of Materials Science: Materials in Electronics, 2018, 29 : 15613 - 15620
12345