Exploring new horizons in mid-to-far infrared nonlinear optical crystals: the significant potential of trigonal pyramidal [TeS 3 ] 2− functional units

作者：Bo Zhang, Shenghua Zhou, Bingxuan Li, Xin‐Tao Wu, Hua Lin, Qi‐Long Zhu · 发表于：Chemical Science · 年份：2025 · DOI：10.1039/d4sc07322c · 被引用次数：17 · 研究领域：Crystal Structures and Properties、Nonlinear Optical Materials Research、Chalcogenide Semiconductor Thin Films

The [TeS 3 ] 2− unit with a SCALP disrupts tetrahedral symmetry, leading to the synthesis of Cu 10 Te 4 S 13 for the first time. This material exhibits strong SHG (3.75 × AgGaS 2 ) and the widest MFIR transparency (2.5–25 μm) reported for NLO chalcogenides.