Volume 59, Issue 12 pp. 4856-4859
Communication

Li[LiCs2Cl][Ga3S6]: A Nanoporous Framework of GaS4 Tetrahedra with Excellent Nonlinear Optical Performance

Dr. Bin-Wen Liu

Dr. Bin-Wen Liu

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155#, Fuzhou, Fujian, 350002 P. R. China

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Xiao-Ming Jiang

Corresponding Author

Xiao-Ming Jiang

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155#, Fuzhou, Fujian, 350002 P. R. China

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Bing-Xuan Li

Bing-Xuan Li

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155#, Fuzhou, Fujian, 350002 P. R. China

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Hui-Yi Zeng

Hui-Yi Zeng

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155#, Fuzhou, Fujian, 350002 P. R. China

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Prof. Guo-Cong Guo

Corresponding Author

Prof. Guo-Cong Guo

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155#, Fuzhou, Fujian, 350002 P. R. China

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First published: 25 October 2019
Citations: 148

Dedicated to Professor Jin-Shun Huang on the occasion of his 80th birthday

Graphical Abstract

The salt-inclusion chalcogenide Li[LiCs2Cl][Ga3S6] is presented, which features a 3D framework composed of [Ga3S6] nanosized tunnels. Introduction of an ionic guest to the covalent chalcogenide host produces a material with a moderate nonlinear optical (NLO) coefficient and an ultrawide band gap (Eg). These characteristics are promising for the development of infrared (IR) NLO materials.

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.

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