Details

Autor(en) / Beteiligte

• Chen, Jindong
• Lin, Chensheng
• Yang, Shunda
• Jiang, Xiaotian
• Shi, Shuangshuang
• Sun, Yingshuang
• Li, Bingxuan
• Fang, Shenghao
• Ye, Ning

Titel

Cd4SiQ6 (Q = S, Se): Ternary Infrared Nonlinear Optical Materials with Mixed Functional Building Motifs

Ist Teil von

• Crystal growth & design, 2020-04, Vol.20 (4), p.2489-2496

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Two ternary infrared nonlinear optical materials Cd4SiS6 (1) and Cd4SiSe6 (2) with polar space group Cc were obtained by mixing d10 configurations-central tetrahedra motifs and nonlinear optical (NLO)-active distorted MIVQ4 tetrahedra motifs in a non-alkaline earth metals-containing system. They exhibited an interesting three-dimensional (3D) framework structure, and millimeter-level single crystals were successfully grown by a chemical transport reaction. Comprehensive optical measurements indicated that they achieve coexistence of good second-harmonic generation (SHG) responses (1.3 and 1.9 × AgGaS2 at 74–106 μm particle size) and high laser-induced damage thresholds (8.6 and 7.1 × AgGaS2 at 1064 nm laser) and wide infrared (IR) transparent regions (0.45–17.6 μm for 1, 0.64–20.3 μm for 2). Furthermore, theoretical studies revealed that their SHG effects originate from two functional building motifs (FBMs) CdQ4 and SiQ4 tetrahedra, shedding light on the exploration of new IR NLO materials with mixed FBMs.