ACuGa <sub>6</sub> S <sub>10</sub> (A = Rb, Cs): Design and Synthesis of Two New Cavity‐Chalcopyrite Chalcogenides Based on “Iterative Substitution” Strategy
Two new non-centrosymmetric chalcogenides, ACuGa<sub>6</sub>S<sub>10</sub> (A=Rb, Cs) have been successfully synthesized by an "iterative substitution" strategy based on chalcopyrite CuFeS<sub>2</sub> structural template. Benefiting from the substitution of Fe<sup>3+</sup> cations by Ga<sup>3+</sup> cations, ACuGa<sub>6</sub>S<sub>10</sub> (A = Rb, Cs) exhibit wide suitable band gap of 2.48 and 2.40 eV, respectively, which is about five times higher than their structure template CuFeS<sub>2</sub>, and a large second harmonic generation response (1.5 and 1.8×AgGaS<sub>2</sub>). Combining theoretical calculation and structural analysis confirms that the [GaS<sub>4</sub>] tetrahedra make the main contribution on their good liner and nonlinear optical (NLO) performances. The "iterative substitution" strategy expands the design idea of materials and can lead to the discovery of a large number of IR NLO compounds.
Authors
- Zhanggui Hu (ORCID: https://orcid.org/0009-0004-0704-6105)
- Yicheng Wu
- Hongping Wu (ORCID: https://orcid.org/0000-0003-0975-1700)
- Hongwei Yu (ORCID: https://orcid.org/0000-0002-5607-0628)
- Xingyu Zhang (ORCID: https://orcid.org/0000-0001-8209-2364)
- Kaixuan Li (ORCID: https://orcid.org/0000-0001-7136-6948)
- Binqiang Chai
- Jiyang Wang
Institutions
- Tianjin University of Technology (CN)
Publication Details
- Journal
- Chemistry - A European Journal
- Published
- 2024-10-17
- DOI
- https://doi.org/10.1002/chem.202403515
- Citations
- 1
- Primary Topic
- Chalcogenide Semiconductor Thin Films
- Type
- article
- Field-Weighted Citation Impact
- 0.21
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Tianjin City