Electrical Properties and Oxygen Stoichiometry of Ba1-xSrxTiO3-δ Ceramics

被引:11
作者
Guo, Mei [1 ,2 ]
Maso, Nahum [2 ]
Liu, Yang [2 ]
West, Anthony R. [2 ]
机构
[1] Shandong Univ Sci & Technol, Coll Elect Engn & Automat, Qingdao 266590, Peoples R China
[2] Univ Sheffield, Dept Mat Sci & Engn, Mappin St, Sheffield S1 3JD, S Yorkshire, England
关键词
BARIUM-STRONTIUM TITANATE; BULK RESISTIVITY; CONDUCTIVITY; BEHAVIOR; BATIO3;
D O I
10.1021/acs.inorgchem.7b01827
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Ba1-xSrxTiO3 solid solutions prepared by a solid-state reaction in air at 1200-1400 degrees C, followed by slow cooling to room temperature at the end of the reaction, were essentially oxygen-stoichiometric and p-type. Their conductivity increased reversibly when either p(O-2) in the surrounding atmosphere was increased or a dc bias as small as 1 V was applied across the samples. The enhanced p-type conductivity is attributed to the creation of mobile holes on underbonded oxide ions. The same samples quenched from >similar to 1400 degrees C were increasingly oxygen deficient and n-type. They showed reduced conductivity with either a dc bias or increased p(O-2), attributed to the trapping of mobile electrons. These materials provide a rare example of a switch between n-type and p-type conductivity, in the same material, linked to oxygen stoichiometry variation. In both n- and p-type materials, the samples responded to external stimuli in a way similar to that of a leaky capacitor; polarization processes at sample surfaces led first to charge storage and second to a reversible change in bulk electrical properties.
引用
收藏
页码:64 / 71
页数:8
相关论文
共 20 条
  • [1] Oxygen non-stoichiometry, conductivity and gas sensor response of SnO2 pellets
    Alagdal, Ibtessam A.
    West, Anthony R.
    [J]. JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (46) : 23213 - 23219
  • [2] PHASE EQUILIBRIA IN THE SYSTEM BATIO3-SRTIO3
    BASMAJIAN, JA
    DEVRIES, RC
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1957, 40 (11) : 373 - 376
  • [3] Oxygen loss, semiconductivity, and positive temperature coefficient of resistance behavior in undoped cation-stoichiometric BaTiO3 ceramics -: art. no. 094102
    Beltrán, H
    Cordoncillo, E
    Escribano, P
    Sinclair, DC
    West, AR
    [J]. JOURNAL OF APPLIED PHYSICS, 2005, 98 (09)
  • [4] Enhanced Conductivity and Nonlinear Voltage-Current Characteristics of Nonstoichiometric BaTiO3 Ceramics
    Beltran, Hector
    Prades, Marta
    Maso, Nahum
    Cordoncillo, Eloisa
    West, Anthony R.
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2011, 94 (09) : 2951 - 2962
  • [5] Voltage-Dependent Low-Field Bulk Resistivity in BaTiO3:Zn Ceramics
    Beltran, Hector
    Prades, Marta
    Maso, Nahum
    Cordoncillo, Eloisa
    West, Anthony R.
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2010, 93 (02) : 500 - 505
  • [6] PROPERTIES OF BARIUM-STRONTIUM TITANATE DIELECTRICS
    BUNTING, EN
    SHELTON, GR
    CREAMER, AS
    [J]. JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS, 1947, 38 (03): : 337 - 349
  • [7] Voltage-Dependent Bulk Resistivity of SrTiO3:Mg Ceramics
    Gil Escrig, Lidon
    Prades, Marta
    Beltran, Hector
    Cordoncillo, Eloisa
    Maso, Nahum
    West, Anthony R.
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2014, 97 (09) : 2815 - 2824
  • [8] JAFFE B., 1971, PIEZOELECTRIC CERAMI, P53, DOI DOI 10.1016/B978-0-12-379550-2.50009-0
  • [9] DIELECTRIC PROPERTIES OF MIXED CRYSTALS OF BARIUM-STRONTIUM TITANATE
    KISAKA, S
    IKEGAMI, S
    SASAKI, H
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1959, 14 (12) : 1680 - 1685
  • [10] Voltage-dependent resistance of undoped rutile, TiO2, ceramics
    Liu, Yang
    West, Anthony R.
    [J]. APPLIED PHYSICS LETTERS, 2013, 103 (26)