La 6 Cd 0.75 Ga 2 Q 11.5 Cl 2.5 (Q = S and Se): two new nonlinear optical chalcohalides with a large laser-induced damage threshold
Two new chalcohalides La 6 Cd 0.75 Ga 2 Q 11.5 Cl 2.5 (Q = S and Se) with mixed-anionic functional groups were synthesized through a high temperature reaction using LaCl 3 as reaction-flux. Both compounds crystalize in the non-centrosymmetric space group P 6 3 with highly oriented tetrahedron [GaQ 4...
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| Veröffentlicht in: | CrystEngComm 2021-03, Vol.23 (10), p.2133-2137 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Two new chalcohalides La
6
Cd
0.75
Ga
2
Q
11.5
Cl
2.5
(Q = S and Se) with mixed-anionic functional groups were synthesized through a high temperature reaction using LaCl
3
as reaction-flux. Both compounds crystalize in the non-centrosymmetric space group
P
6
3
with highly oriented tetrahedron [GaQ
4
] and one-dimension chain [CdQ/Cl
6
] (Q = S and Se). The La
6
Cd
0.75
Ga
2
S
11.5
Cl
2.5
shows a large laser-induced damage threshold (LIDT) (18.6 × AgGaS
2
) and strong second harmonic generation (SHG) response (0.8 × AgGaS
2
). These results indicate that the introduction of halogens into chalcogenides is beneficial to achieve large LIDTs and SHG response. |
|---|---|
| ISSN: | 1466-8033 1466-8033 |
| DOI: | 10.1039/D0CE01852J |