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- Title
Li[LiCs<sub>2</sub>Cl][Ga<sub>3</sub>S<sub>6</sub>]: A Nanoporous Framework of GaS<sub>4</sub> Tetrahedra with Excellent Nonlinear Optical Performance.
- Authors
Liu, Bin‐Wen; Jiang, Xiao‐Ming; Li, Bing‐Xuan; Zeng, Hui‐Yi; Guo, Guo‐Cong
- Abstract
A large nonlinear optical (NLO) coefficient and a wide band gap are two crucial but contradictory parameters that are difficult to achieve simultaneously in a single infrared (IR) NLO compound. A salt‐inclusion chalcogenide (SIC), Li[LiCs2Cl][Ga3S6] (1), was prepared that presents a nanosized tunnel framework constructed from monotype chalcogenide tetrahedra. Highly oriented covalent GaS4 tetrahedra in the host lead to a moderate second harmonic generation response (0.7 AgGaS2), and ionic guests effectively broaden the band gap to the widest value (4.18 eV) among all IR NLO chalcogenides, thereby achieving a remarkable balance between NLO efficiency and band gap.
- Subjects
SECOND harmonic generation; MATHEMATICAL complexes; TETRAHEDRA; PYROLYTIC graphite
- Publication
Angewandte Chemie, 2020, Vol 132, Issue 12, p4886
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201912416