Structural and electrical properties of Mn1.56Co 0.96Ni0.48O4 NTC thermistor films

  • Y. Q. Gao*
  • , Z. M. Huang
  • , Y. Hou
  • , J. Wu
  • , W. Zhou
  • , C. Ouyang
  • , J. G. Huang
  • , J. C. Tong
  • , J. H. Chu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

High quality Mn1.56Co0.96Ni0.48O 4 (MCN) films have been prepared by chemical solution deposition method. The microstructure and electrical properties of the films are investigated with different layers. Both the crystalline quality and the grain size improve when the film layers increase. The theoretical lattice constant acal is slightly smaller compared with the XRD experiment results afilm. The temperature dependence of resistivity can be described by a variable range hopping model for a parabolic density of states. With the increase of film layers, the sensitivity and stability of the MCN films increase. The advantage of good negative temperature coefficient thermistor characteristic makes the MCN films very preponderant for thermal sensors.

Original languageEnglish
Pages (from-to)74-78
Number of pages5
JournalMaterials Science and Engineering: B
Volume185
Issue number1
DOIs
StatePublished - Jul 2014
Externally publishedYes

Keywords

  • Sensitivity and stability
  • Structural and electrical properties
  • Thermal sensors

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