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Solvothermal syntheses, crystal structures, and photocurrent responses of quaternary sulfides RbAgZnS2 and Cs2Ag2Zn2S4.
- Source :
-
Journal of Solid State Chemistry . Nov2022, Vol. 315, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- Two new compounds RbAgZnS 2 (1) and Cs 2 Ag 2 Zn 2 S 4 (2) have been successfully synthesized under facile solvothermal method using excess sulfur as a mineralizer. Compound 1 contains anionic [AgZnS 2 ] n n− layers composed of MS 4 (M = Ag/Zn) tetrahedra, in which Ag+ and Zn2+ ions occupy the same crystallographic site. In the structure of compound 2 , the anionic [Ag 2 Zn 2 S 4 ] n 2n− layer is composed of [AgS 2 ] n 3n− and [ZnS 2 ] n 2n− anion chains which are generated by AgS 4 and ZnS 4 tetrahedra, respectively. The band gap values of the two compounds reveal that they are semiconductors. Furthermore, the photoelectric response experiment indicates compound 2 exhibits excellent photoelectric response performance. Compound Cs 2 Ag 2 Zn 2 S 4 (2) were synthesized under solvothermal conditions by using excess sulfurasan effectivemineralizer.Its anionic [Ag 2 Zn 2 S 4 ] n 2n- layer is composed of [AgS 2 ] n 3n- and [ZnS 2 ] n 2n- anion chains which are generated by AgS 4 and ZnS 4 tetrahedra, respectively. Furthermore, the photoelectric response experiment indicates compound 2 exhibits excellent photoelectric response performance. [Display omitted] • Two sulfides RbAgZnS 2 (1) and Cs 2 Ag 2 Zn 2 S 4 (2) were synthesized solvothermally using excess sulfur as a mineralizer. • The structures of the two compounds are completely different due to the effect of different structural directing agents. • Cs 2 Ag 2 Zn 2 S 4 (2) exhibits excellent photoelectric response performance. • This is an extremely rare study on the influence of structural directing agents about hetero-transition metal systems. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CRYSTAL structure
*SULFIDES
*SILVER sulfide
*BAND gaps
*TETRAHEDRA
*SULFUR
Subjects
Details
- Language :
- English
- ISSN :
- 00224596
- Volume :
- 315
- Database :
- Academic Search Index
- Journal :
- Journal of Solid State Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 159169825
- Full Text :
- https://doi.org/10.1016/j.jssc.2022.123457