4.7 Article

Structural and Optical Properties of Sb-Substituted BiSI Grown from Sulfur/Iodine Flux

Journal

INORGANIC CHEMISTRY
Volume 56, Issue 20, Pages 12362-12368

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.7b01839

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Funding

  1. Council on Research and Creativity of Florida State University
  2. Florida State University Research Foundation
  3. National High Magnetic Field Laboratory - National Science Foundation [DMR-1157490]
  4. State of Florida

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Bismuth and antimony were reacted in sulfur/iodine flux mixtures at various temperatures and iodine concentrations to explore the effects of these variables on the synthesis and properties of Bi1-xSbxSI products. The products grow as crystals; microprobe elemental analysis and UV/vis/NIR spectroscopy of the Bi1-xSbxSI solid solutions indicate that substitution is homogeneous within individual crystals but varies up to 15% between crystals within each synthesis batch. Raman spectra show a two mode behavior upon substitution, indicating covalent bonding within the structure, and TEM/SEM data confirm no presence of nanoclustering or segregation within the crystals.

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