Second harmonic generation response of the cubic chalcogenides Ba(6−x)Srx[Ag(4−y)Sn(y/4)](SnS4)4

Alyssa S. Haynes, Te Kun Liu, Laszlo Frazer, Jyun Fan Lin, Shuo Yu Wang, John B. Ketterson, Mercouri G. Kanatzidis, Kuei Fang Hsu

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2 Citations (Scopus)

Abstract

We synthesized the barium/strontium solid solution sequence Ba6−xSrx[Ag(4−y)Sn(y/4)](SnS4)4 for nonlinear optical (NLO) applications in the infrared (IR) via a flux synthesis route. All title compounds are isotypic, crystallizing in the cubic space group I 4̅3d and are composed of a three-dimensional (3D) anionic framework of alternating corner-sharing SnS4 and AgS4 tetrahedra charge balanced by Ba and Sr. The shrinkage of Ba/Sr–S bond lengths causes the tetrahedra in the anionic framework to become more distorted, which results in a tunable band gap from 1.58 to 1.38 eV with increasing x values. The performance of the barium limit (x=0) is also superior to that of Sr (x=6), but surprisingly second harmonic generation (SHG) of the solid solution remains strong and is insensitive to the value of x over the range 0–3.8. Results show that the non-type-I phase-matched SHG produced by these cubic chalcogenides display intensities higher than the benchmark AgGaSe2 from 600 to 1000 nm.

Original languageEnglish
Pages (from-to)119-125
Number of pages7
JournalJournal of Solid State Chemistry
Volume248
DOIs
Publication statusPublished - Apr 1 2017

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Keywords

  • Infrared nonlinear optical material
  • Metal chalcogenide
  • Second harmonic generation
  • Solid solutions
  • Tunable band gap

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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