Li2.9Cs1.1(SO4)2: An Ultraviolet Transparent Sulfate as a Nonlinear Optical Crystal

In this work, the slow evaporation method of room temperature was used to grow an ultraviolet (UV) transparent nonlinear optical (NLO) crystal of Li2.9Cs1.1(SO4)2 (LCSO). It crystallizes in space group Pmc21. The energy band gap was measured to be 5.39 eV, and this crystal demonstrates a moderate se...

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Bibliographic Details
Published in:Crystal growth & design 2023-08, Vol.23 (8), p.5614-5620
Main Authors: Yang, Wen, Liu, Lehui, Zhang, Lizhen, Huang, Yisheng, Yuan, Feifei, Lin, Zhoubin
Format: Article
Language:English
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Summary:In this work, the slow evaporation method of room temperature was used to grow an ultraviolet (UV) transparent nonlinear optical (NLO) crystal of Li2.9Cs1.1(SO4)2 (LCSO). It crystallizes in space group Pmc21. The energy band gap was measured to be 5.39 eV, and this crystal demonstrates a moderate second-harmonic generation response (0.8 × KDP). Fundamental building units are tetrahedron [SO4]2– groups in this structure. The theoretical calculations were performed to illustrate the relationship between electronic structure and associated NLO response. These findings demonstrate the potential of the LCSO crystal as an UV NLO material.
ISSN:1528-7483
1528-7505
DOI:10.1021/acs.cgd.3c00269