Electrical and CO gas-sensing properties of perovskite-type La0.8Pb0.2Fe0.8Co0.2O3 semiconductive materials

被引：23
作者：
Song, P
Qin, HW
Zhang, L
Liu, X
Huang, SX
Hu, JF [1 ]
Jiang, MH
机构：
[1] Shandong Univ, Dept Phys & Microelect, Jinan 250100, Peoples R China
[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2005年 / 368卷 / 1-4期
关键词：
perovskite; CO sensing; citric method; electrical property;
D O I：
10.1016/j.physb.2005.07.015
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Nanocrystalline La0.8Pb0.2Fe0.8Co0.2O3 has been prepared by the citrate method. The structure, electrical and CO gas-sensing properties were investigated. The results demonstrated that La0.8Pb0.2Fe0.8Co0.2O3 is a perovskite phase with the orthorhombic structure, it shows p-type semiconducting properties. In a wide temperature range of 40-200 degrees C, La0.8Pb0.2Fe0.8Co0.2O3-based sensor showed good sensitivity and selectivity to CO gas. An empirical relationship of R = KCH2 alpha with alpha = 0.61 can be obtained. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：204 / 208
页数：5
相关论文
共 14 条
  • [1] ASTE T, 1994, SENSOR ACTUAT B-CHEM, V18, P637
  • [2] Characteristics of La0.8Sr0.2Co1-xCuxO3-δ film and its sensing properties for CO gas
    Chai, YL
    Ray, DT
    Liu, HS
    Dai, CF
    Chang, YH
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 293 (1-2): : 39 - 45
  • [3] The sensing properties of heterojunction SnO2/La0.8Sr0.2Co0.5Ni0.5O3 thin-film CO sensor
    Chen, YC
    Chang, YH
    Chen, GJ
    Chai, YL
    Ray, DT
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2003, 96 (1-2) : 82 - 87
  • [4] The influence of microstructure and deposition methods on CO gas sensing properties of La0.8Sr0.2Co1-xNixO3-δ perovskite films
    Chiu, CM
    Chang, YH
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1999, 54 (03) : 236 - 242
  • [5] The structure, electrical and sensing properties for CO of the La0.8Sr0.2Co1-xNixO3-δ system
    Chiu, CM
    Chang, YH
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 266 (1-2): : 93 - 98
  • [6] Characteristics and sensing properties of dipped La0.8Sr0.2Co1-xNixO3-δ film for CO gas sensors
    Chiu, CM
    Chang, YH
    [J]. THIN SOLID FILMS, 1999, 342 (1-2) : 15 - 19
  • [7] CLIFFORD PK, 1982, SENSOR ACTUATOR, V3, P233
  • [8] Characteristics of reactively sputtered Pt-SnO2 thin films for CO gas sensors
    DiGiulio, M
    Micocci, G
    Serra, A
    Tepore, A
    Rella, R
    Siciliano, R
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1996, 14 (04): : 2215 - 2219
  • [9] Ge XT, 2002, J INORG MATER, V17, P526
  • [10] Preparation and gas-sensitive properties of LaFe1-yCoyO3 semiconducting materials
    Ge, XT
    Liu, YF
    Liu, XQ
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 2001, 79 (2-3) : 171 - 174
12