The influence of oxygen deficiency on the thermoelectric properties of strontium titanates Academic Article

abstract

• We report oxygen reduction in bulk strontium titanate substrates when a thin film was deposited in an oxygen-deficient environment. The oxygen diffusion occurred at moderate temperatures and oxygen pressures, which were not enough to produce detectable oxygen vacancies without the film deposition. In order to identify the reduction, we used a series of different annealing conditions and various substrates and performed comparative studies regarding thermoelectric properties before and after removing the films. Our experimental results suggest that the measurements of material properties of thin films on SrTi O3 single crystal substrates need to be performed carefully due to its strong susceptibility to oxygen deficient conditions. 2008 American Institute of Physics.

authors

• Yu, Choongho

published proceedings

• Applied Physics Letters

author list (cited authors)

• Yu, C., Scullin, M. L., Huijben, M., Ramesh, R., & Majumdar, A.

citation count

• 45

complete list of authors

• Yu, Choongho||Scullin, Matthew L||Huijben, Mark||Ramesh, Ramamoorthy||Majumdar, Arun

publication date

• March 2008

publisher

• AIP Publishing  Publisher

published in

• Applied Physics Letters  Journal

Digital Object Identifier (DOI)

• 10.1063/1.2890493

start page

• 092118

end page

• 092118

volume

• 92

issue

• 9

URL

• http://dx.doi.org/10.1063/1.2890493