›› 2010, Vol. 23 ›› Issue (8): 47-.

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Effects of La2O3 and Nb2O5 Doping on Sensitivity and Semi-conductivities of SrTiO3

 DU Li, CAO Quan-Xi   

  1. (School of Technical Physics,Xidian University,Xi'an 710071,China)
  • Online:2010-08-15 Published:2011-03-28


The Effects of La2O3 and Nb2O5 doping on the sensitivity and semi-conductivities of SrTiO3 oxygen sensors are investigated.Semiconductor SrTiO3-based oxygen sensors are prepared by solid phase synthesis at 1 220 ℃.Effects on sensitivity and resistance of different La and Nb doping proportion are discussed.The results show that double donors doping proportion not only promotes the semi-conductivity but also strongly influences sensitivity of SrTiO3 oxygen sensors.SrTiO3 exhibits excellent sensitivity to oxygen when the doping proportion is 0.03.

Key words: SrTiO3;double-doped;oxygen sensors;semi-conductivities

CLC Number: 

  • TN305