Journal
COORDINATION CHEMISTRY REVIEWS
Volume 333, Issue -, Pages 57-70Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ccr.2016.11.012
Keywords
Review; Diamond-like; Sulfide; Mid-IR; Nonlinear optics
Categories
Funding
- 863 Program of China [2015AA034203]
- National Natural Science Foundation of China [11174297]
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Metal sulfides with diamond-like (DL) structures are systematically investigated in this study for nonlinear optical (NLO) applications in the mid-infrared (mid-IR) spectral region. All the selected materials are characterized by a 3D framework connected by various sulfide tetrahedral units, such as [PS4], [SiS4], [GeS4], [GaS4], [InS4], [CdS4], [ZnS4], [LiS4], and [AgS4]. The linear and nonlinear optical properties of these materials are analyzed on the basis of first-principles calculations. It is concluded that it is relatively easy to achieve good balance between the bandgap and the NLO effect. Additionally, moderate birefringence Delta n (similar to 0.03-0.10) is required for practical mid-IR NLO applications. In particular, several metal sulfides with normal DL and defect DL structures, exhibiting superior mid-IR NLO properties, are highlighted. These provide an instructive guide for the design and discovery of new materials with good mid-IR NLO performance. (C) 2016 Elsevier B.V. All rights reserved.
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