Skip to main content
Journal cover image

Structural, Optical, and Electronic Properties of Two Quaternary Chalcogenide Semiconductors: Ag2SrSiS4 and Ag2SrGeS4.

Publication ,  Journal Article
McKeown Wessler, GC; Wang, T; Sun, J-P; Liao, Y; Fischer, MC; Blum, V; Mitzi, DB
Published in: Inorganic chemistry
August 2021

Quaternary chalcogenide materials have long been a source of semiconductors for optoelectronic applications. Recent studies on I2-II-IV-X4 (I = Ag, Cu, Li; II = Ba, Sr, Eu, Pb; IV = Si, Ge, Sn; X = S, Se) materials have shown particular versatility and promise among these compounds. These semiconductors take advantage of a diverse bonding scheme and chemical differences among cations to target a degree of antisite defect resistance. Within this set of compounds, the materials containing both Ag and Sr have not been experimentally studied and leave a gap in the full understanding of the family. Here, we have synthesized powders and single crystals of two Ag- and Sr-containing compounds, Ag2SrSiS4 and Ag2SrGeS4, each found to form in the tetragonal I4̅2m structure of Ag2BaGeS4. During the synthesis targeting the title compounds, two additional materials, Ag2Sr3Si2S8 and Ag2Sr3Ge2S8, have also been identified. These cubic compounds represent impurity phases during the synthesis of Ag2SrSiS4 and Ag2SrGeS4. We show through hybrid density functional theory calculations that Ag2SrSiS4 and Ag2SrGeS4 have highly dispersive band-edge states and indirect band gaps, experimentally measured as 2.08(1) and 1.73(2) eV, respectively. Second-harmonic generation measurements on Ag2SrSiS4 and Ag2SrGeS4 powders show frequency-doubling capabilities in the near-infrared range.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Inorganic chemistry

DOI

EISSN

1520-510X

ISSN

0020-1669

Publication Date

August 2021

Volume

60

Issue

16

Start / End Page

12206 / 12217

Related Subject Headings

  • Inorganic & Nuclear Chemistry
  • 3403 Macromolecular and materials chemistry
  • 3402 Inorganic chemistry
  • 0399 Other Chemical Sciences
  • 0306 Physical Chemistry (incl. Structural)
  • 0302 Inorganic Chemistry
 

Citation

APA
Chicago
ICMJE
MLA
NLM
McKeown Wessler, G. C., Wang, T., Sun, J.-P., Liao, Y., Fischer, M. C., Blum, V., & Mitzi, D. B. (2021). Structural, Optical, and Electronic Properties of Two Quaternary Chalcogenide Semiconductors: Ag2SrSiS4 and Ag2SrGeS4. Inorganic Chemistry, 60(16), 12206–12217. https://doi.org/10.1021/acs.inorgchem.1c01416
McKeown Wessler, Garrett C., Tianlin Wang, Jon-Paul Sun, Yuheng Liao, Martin C. Fischer, Volker Blum, and David B. Mitzi. “Structural, Optical, and Electronic Properties of Two Quaternary Chalcogenide Semiconductors: Ag2SrSiS4 and Ag2SrGeS4.Inorganic Chemistry 60, no. 16 (August 2021): 12206–17. https://doi.org/10.1021/acs.inorgchem.1c01416.
McKeown Wessler GC, Wang T, Sun J-P, Liao Y, Fischer MC, Blum V, et al. Structural, Optical, and Electronic Properties of Two Quaternary Chalcogenide Semiconductors: Ag2SrSiS4 and Ag2SrGeS4. Inorganic chemistry. 2021 Aug;60(16):12206–17.
McKeown Wessler, Garrett C., et al. “Structural, Optical, and Electronic Properties of Two Quaternary Chalcogenide Semiconductors: Ag2SrSiS4 and Ag2SrGeS4.Inorganic Chemistry, vol. 60, no. 16, Aug. 2021, pp. 12206–17. Epmc, doi:10.1021/acs.inorgchem.1c01416.
McKeown Wessler GC, Wang T, Sun J-P, Liao Y, Fischer MC, Blum V, Mitzi DB. Structural, Optical, and Electronic Properties of Two Quaternary Chalcogenide Semiconductors: Ag2SrSiS4 and Ag2SrGeS4. Inorganic chemistry. 2021 Aug;60(16):12206–12217.
Journal cover image

Published In

Inorganic chemistry

DOI

EISSN

1520-510X

ISSN

0020-1669

Publication Date

August 2021

Volume

60

Issue

16

Start / End Page

12206 / 12217

Related Subject Headings

  • Inorganic & Nuclear Chemistry
  • 3403 Macromolecular and materials chemistry
  • 3402 Inorganic chemistry
  • 0399 Other Chemical Sciences
  • 0306 Physical Chemistry (incl. Structural)
  • 0302 Inorganic Chemistry