Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지

Electrical Conductivity and Defect Structure in $SrTiO_3$Thick Film

$SrTiO_3$ 후막의 전기전도도 및 결함구조

  • 김영호 (한국과학기술원 재료공학과) ;
  • 김호기 (한국과학기술원 재료공학과)
  • Published : 1990.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

The electrical conductivity of SrTiO3 thick films, which has been prepared by screen printing and sintering on polycrystalline Al2O3 substrates, was determined as a function of oxygen partial pressure and temperature. The data showed that electrical conductivity was proportional to the -1/4th power of the oxygen partial pressure for the oxygen partial pressure range from 10-4-10-8 to 10-20 atm and proportional to Po2+1/4 for the oxygen partial pressure range from 10-6-10-4 to 1atm. And then n-p transition region of electrical conductivity moved to lower oxygen partial pressure region as the sintering temperature of thick film specimens increased under about 140$0^{\circ}C$. These data were consistent with the presence of small amounts of acceptor impurities in SrTiO3 thick film which have been diffused from Al2O3 substrate in the range of solid solubility limit.

Keywords

References

  1. Advances in Ceramics v.1 Grain Boundary Phenomena in Electronic Ceramics L M. Levinson(ed.);D.C Hill(ed.)
  2. Proc of 2nd Int. Meeting on Chemical Sensors Oxygen Sensors T. Takeuchi
  3. Chem. Lett. Perovskite-Type Oxides Having Semiconductivity as Oxygen Sensors Y. Shimizu;Y. Fukuyama;T. Narikyo
  4. J. Phys Chem. Solids v.28 Formation of Point Defects in Strontium Titanate L C. Walters;R.E Graces
  5. J Phys. Chem. Solids v.128 Diffusion of Point Defects in Strontium Titanate L.C Walters;R E Graces
  6. J. Electrochem. Soc v.128 Nonstoichiometry in SrTiO₃ N.H. Chan;R.K. Sharma;D.M. Smith
  7. J. of Solid State Chem v.39 Electrical Conductivity in Strontium Titanate U. Balachandran;N.G. Eror
  8. J Am Ceram. Soc. v.71 no.4 Defect Structure and Electrical Properties of Single-Crystal $Ba_{0.03}Sr_{0.97}$TiO₄ G M Choi;H L Tuller
  9. J. Phys Chem. Solids v.26 Oxygen Ion Diffusion in Single Crystalline SrTiO₃ A E Paladino;L.G. Rubin;J.S Waugh
  10. Phys. Rev A v.160 Optical Properties and Band Structure of SrTiO₃ and BaTiO₃ M. Cardona
  11. Phys Rev. v.113 Optical Transmission of Heat-Treated Strontium Titanate H W Gandy
  12. Phys. Rev. v.166 Optical Properties of Perovskite Oxides in Their Paraelectric and Ferroelectric Phases M Didomenico. Jr;S H Wemple
  13. J Mat. Sci Lett. v.8 Behavior of Adsorbed Oxygen on Mg-doped SrTiO₃ Used as a Semiconductive Oxygen Sensor C Yu;Y. Shimizu;H Arai;Sheng
  14. J Am. Ceram. Soc v.69 no.4 Reaction of Strontium Cabornate with Anatase and Rutile H Tagawa;K Igarashi
  15. Denki Kagaku(J Electrochem. Soc. Jpn) v.52 no.3 Reactivity of Starting Materials in Formation of Strontium Titanate H. Tagawa;K. Kimura;T. Fujino;K. Ouchi
  16. J. Am. Ceram Soc v.67 no.5 Variability of the Sr/Ti Ratio in SrTiO₃ S Witek;D.M Smith;H. Pickup
  17. J Solid State Chem. v.42 Electrical Conductivity in Strontium Titanate with Nonideal Cationic Ratio N.G. Eror;U Balachandran
  18. J. Mat. Sci. v.17 On the Defect Structure of Strontium Titanate with Excess SrO N G. Eror;U. Balachandran
  19. Philips Res. Rep. v.31 J. Daniels;K H. Hardtl
  20. J. Solid State Chem. v.6 Point Defects in Reduced Strontium Titanate H. Yamada;G.R Miller
  21. Introduction to Ceramics(2nd ed.) W.D Kingery;H K. Bowen;D R. Uhlmann