八面体
材料科学
共轭体系
非线性光学
晶体结构
纳米技术
结晶学
化学
有机化学
聚合物
非线性系统
物理
量子力学
作者
Hongping Wu,Zhijun Wei,Zhanggui Hu,Jiyang Wang,Yicheng Wu,Hongwei Yu
出处
期刊:Angewandte Chemie
[Wiley]
日期:2024-05-08
卷期号:63 (30): e202406318-e202406318
被引量:60
标识
DOI:10.1002/anie.202406318
摘要
Abstract Achieving the extreme balance of the key performance requirements is the crucial to breakthrough the application bottleneck for nonlinear optical (NLO) materials. Herein, by assembly of the π‐conjugated [B 3 O 6 ] functional species with the aid of structure‐directing property of mer ‐isomer [YO 3 F 3 ] octahedra, a new ultraviolet (UV) NLO material, Cs 2 YB 3 O 6 F 2 with aligned arrangement of coplanar [B 3 O 6 ] groups has been synthesized. The polar material exhibits the rare coexistence of the largest second harmonic generation response of 5.6×KDP, the largest birefringence of 0.091 at 532 nm, the shortest Type I phase‐matching down to 200.5 nm and deep‐ultraviolet transparency among reported acentric rare‐earth borates with [B 3 O 6 ] groups. Remarkably, benefiting from the enhanced bonding force among functional units [B 3 O 6 ], a firm three‐dimensional framework is constructed, which facilitates the growth of large crystals. This can be proved by a block shape crystal with dimensional of 6×5×4 mm 3 , indicating that it was a promising UV NLO crystal. This work provides a powerful strategy to design UV NLO materials with good performances.
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