Electrical, optical, and structural properties of tin-doped In2O3-M2O3 solid solutions (M = Y, Sc)

Andrea Ambrosini, Angel Duarte, Kenneth R. Poeppelmeier*, Melissa Lane, Carl R. Kannewurf, Thomas O. Mason

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


In2O3 crystallizes in the bixbyite, or C-type rare earth, structure (space group Ia3), as do the smaller lanthanide oxides (Tb-Lu) and the oxides of Y and Sc. Solid solutions of In(2-x)M(x)O(3-δ) (M = Y or Sc) with varying lattice parameters were prepared and doped with tin. Substitution of tin oxide into In(2-x)Y(x)O(3-δ) results in the formation of the pyrochlore phase, Y2Sn2O7. The pyrochlore dominates the Y-In-Sn oxide ternary phase diagram and prevents the tin from donating charge carriers. Solid solutions in which M = Sc could be reacted with a limited amount of tin oxide without the formation of a second phase. The presence of increasing scandium results in decreasing conductivity with a corresponding increase in the optical band gap and percent transmission. (C) 2000 Academic Press.

Original languageEnglish (US)
Pages (from-to)41-47
Number of pages7
JournalJournal of Solid State Chemistry
Issue number1
StatePublished - 2000


  • Bixbyite
  • Indium oxide
  • Phase diagram
  • Pyrochlore
  • Solid solution
  • Transparent conducting oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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