1. Investigation on two new antimony-based quaternary chalcogenides: Na6CdSb4S10 and Na3CdSbSe4.
- Author
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Huang, Yi, Wu, Xiaowen, and Beysen, Sadeh
- Subjects
CHALCOGENIDES ,ANTIMONY compounds ,MOLECULAR structure - Abstract
Two new quaternary chalcogenides, Na
6 CdSb4 S10 and Na3 CdSbSe4 , were successfully synthesized by the high-temperature solid-state reaction in vacuum-sealed silica tubes. Note that Na6 CdSb4 S10 crystallizes in the C2/c space group, whereas Na3 CdSbSe4 crystallizes in the P21 /c space group. As seen from their structures, Na6 CdSb4 S10 exhibits a three-dimensional (3D) framework structure composed by the interconnection of isolated [(Cd/Sb)2 Sb2 S10 ] clusters and two different layers formed by the NaSn (n = 4, 6) units; besides, the structure of Na3 CdSbSe4 is composed of isolated∞ (Cd3 Sb2 Se12 )n chains and 2D layers formed by the NaSen (n = 5, 6) units. Their optical performances (bandgap and Raman spectra) were also investigated. Moreover, theoretical calculation was used to analyze the structure–performance relationship of Na3 CdSbSe4 . [ABSTRACT FROM AUTHOR]- Published
- 2019
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