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Na2 Ba[Na2 Sn2 S7 ]: Structural Tolerance Factor-Guided NLO Performance Improvement.
Li, Rui-An; Liu, Qian-Qian; Liu, Xin; Liu, Youquan; Jiang, Xingxing; Lin, Zheshuai; Jia, Fei; Xiong, Lin; Chen, Ling; Wu, Li-Ming.
Affiliation
  • Li RA; Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, 100875, Beijing, P. R. China.
  • Liu QQ; Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, 100875, Beijing, P. R. China.
  • Liu X; Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, 100875, Beijing, P. R. China.
  • Liu Y; Key Lab of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, P. R. China.
  • Jiang X; Key Lab of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, P. R. China.
  • Lin Z; Key Lab of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, P. R. China.
  • Jia F; Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, 100875, Beijing, P. R. China.
  • Xiong L; Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, 100875, Beijing, P. R. China.
  • Chen L; Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, 100875, Beijing, P. R. China.
  • Wu LM; Center for Advanced Materials Research, Beijing Normal University, 519087, Zhuhai, P. R. China.
Angew Chem Int Ed Engl ; 62(7): e202218048, 2023 Feb 06.
Article in En | MEDLINE | ID: mdl-36541587
ABSTRACT
The strong mutual coupling of and even the opposite change in the key parameters, such as the band gap (Eg ) and second-order harmonic generation (SHG), leads to the extreme scarcity in high-performance IR nonlinear optical (NLO) chalcogenides. Herein, we report 8 new sulfides, Na2 Ba[(Agx Na1-x )2 Sn2 S7 ] (1, x=0; 1 series, x=0.1-0.6; Na2 Ba[(Li0.58 Na0.42 )2 Sn2 S7 ], 1-0.6Li); Na2 Sr[Cu2 Sn2 S7 ] (2); and Na2 Ba[Cu2 Sn2 S7 ] (3). We use the structural tolerance factor ( t I e x p ${{t}_{I}^{exp}}$ ) to connect the chemical composition, crystal structure, and NLO properties. Guided by these correlations, a better balance between Eg and SHG is realized in 1, which exhibits a large Eg of 3.42 eV and excellent NLO properties (SHG 1.5×AGS; laser-induced damage threshold 12×AGS), representing the best performance among the known Hg- or As-free sulfides to date.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Angew Chem Int Ed Engl Year: 2023 Document type: Article
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XML
PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Angew Chem Int Ed Engl Year: 2023 Document type: Article