Na2Hg3M2S8 (M = Si, Ge, and Sn): New Infrared Nonlinear Optical Materials with Strong Second Harmonic Generation Effects and High Laser-Damage Thresholds
- Kui Wu ,
- Zhihua Yang , and
- Shilie Pan
Abstract

A new family of noncentrosymmetric isostructural compounds, Na2Hg3M2S8 (M = Si, Ge, and Sn), was successfully synthesized. They crystallize in the tetragonal space group P4̅c2 with Z = 2. Their major structures are composed of infinite cross-connected ∞(HgS3)n chains and isolated [MS4] ligands and show the interesting tunnel features. Interestingly, compared with the structures of A2Hg3M2S8 (A = alkali metal, Na–Cs), it can be found that the structural symmetries show a gradually rising tendency from Cs to Na analogues as a result of cation size effect, which rarely exists in quaternary alkali metal chalcogenides. Property measurements show that title compounds exhibit strong second harmonic generation (SHG) effects with a phase-matching behavior at 2.09 μm, wide transparency range in the infrared (IR) region, and large laser-damage thresholds (LDTs). Remarkably, Na2Hg3Si2S8 and Na2Hg3Ge2S8 achieve the suitable balance between large SHG effects (1.3 and 2.2 × benchmark AgGaS2) and high LDTs (4.5 and 3 × AgGaS2), respectively, and can be expected to be potential nonlinear optical (NLO) candidates in the IR region. Moreover, band structures and NLO properties of title compounds are also theoretically studied, and the calculated NLO coefficients are consistent with the experimental observations.
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- Leyan Nian, Junben Huang, Kui Wu, Zhi Su, Zhihua Yang, Shilie Pan. BaCu 2 M IV Q 4 (M IV = Si, Ge, and Sn; Q = S, Se): synthesis, crystal structures, optical performances and theoretical calculations. RSC Advances 2017, 7 (47) , 29378-29385. https://doi.org/10.1039/C7RA05022D
- Rui-Huan Duan, Peng-Fei Liu, Hua Lin, Y. J. Zheng, Ju-Song Yu, Xin-Tao Wu, Shang-Xiong Huang-Fu, Ling Chen. Ba 6 Li 2 CdSn 4 S 16 : lithium substitution simultaneously enhances band gap and SHG intensity. Journal of Materials Chemistry C 2017, 5 (28) , 7067-7074. https://doi.org/10.1039/C7TC01811H
- Ni Zhen, Leyan Nian, Guangmao Li, Kui Wu, Shilie Pan. A High Laser Damage Threshold and a Good Second-Harmonic Generation Response in a New Infrared NLO Material: LiSm3SiS7. Crystals 2016, 6 (10) , 121. https://doi.org/10.3390/cryst6100121
- Kui Wu, Zhihua Yang, Shilie Pan. ChemInform Abstract: Na 2 Hg 3 M 2 S 8 (M: Si, Ge, and Sn): New Infrared Nonlinear Optical Materials with Strong Second Harmonic Generation Effects and High Laser-Damage Thresholds.. ChemInform 2016, 47 (28) https://doi.org/10.1002/chin.201628007
- Miriding Mutailipu, Zhi Li, Min Zhang, Dianwei Hou, Zhihua Yang, Bingbing Zhang, Hongping Wu, Shilie Pan. The mechanism of large second harmonic generation enhancement activated by Zn 2+ substitution. Physical Chemistry Chemical Physics 2016, 18 (48) , 32931-32936. https://doi.org/10.1039/C6CP07391C
- Ni Zhen, Kui Wu, Ying Wang, Qiang Li, Wenhui Gao, Dianwei Hou, Zhihua Yang, Huaidong Jiang, Yongjun Dong, Shilie Pan. BaCdSnS 4 and Ba 3 CdSn 2 S 8 : syntheses, structures, and non-linear optical and photoluminescence properties. Dalton Transactions 2016, 45 (26) , 10681-10688. https://doi.org/10.1039/C6DT01537A
- Rui-Huan Duan, Ju-Song Yu, Hua Lin, Yu-Jun Zheng, Hua-Jun Zhao, Shang-Xiong Huang-Fu, Muhammad Ali Khan, Ling Chen, Li-Ming Wu. Pb 5 Ga 6 ZnS 15 : a noncentrosymmetric framework with chains of T2-supertetrahedra. Dalton Transactions 2016, 45 (31) , 12288-12291. https://doi.org/10.1039/C6DT02404A
- Xiaowen Wu, Yi Hu, Hui Pan, Zhi Su. Na 9 Sb(Ge 2 Q 6 ) 2 (Q = S, Se): two new antimony( iii ) quaternary chalcogenides with ethane-like [Ge 2 Q 6 ] 6− ligands. RSC Advances 2016, 6 (101) , 99475-99481. https://doi.org/10.1039/C6RA22000B
- Bin-Wen Liu, Hui-Yi Zeng, Xiao-Ming Jiang, Guan-E Wang, Shu-Fang Li, Li Xu, Guo-Cong Guo. [A 3 X][Ga 3 PS 8 ] (A = K, Rb; X = Cl, Br): promising IR non-linear optical materials exhibiting concurrently strong second-harmonic generation and high laser induced damage thresholds. Chemical Science 2016, 7 (9) , 6273-6277. https://doi.org/10.1039/C6SC01907B
- Maierhaba Abudoureheman, Shujuan Han, Bing-Hua Lei, Zhihua Yang, Xifa Long, Shilie Pan. KPb 2 (PO 3 ) 5 : a novel nonlinear optical lead polyphosphate with a short deep-UV cutoff edge. Journal of Materials Chemistry C 2016, 4 (45) , 10630-10637. https://doi.org/10.1039/C6TC03424A



