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拓导向发现BaIn₂Si₇P₁₂:一个四级钻石状的框架化物,具有巨大的二次波生成和高激光诱导损伤值

Jiazheng Zhou¹, Yu Chu¹, Xin Su¹

¹Research Center for Crystal Materials; CAS Key Laboratory of Functional Materials and Devices for Special Environmental Conditions; Xinjiang Key Laboratory of Functional Crystal Materials, Xinjiang Technical Institute of Physics & Chemistry, CAS, 40-1 South Beijing Road, Urumqi 830011, China.

Journal of the American Chemical Society

|February 16, 2026

概括

研究人员开发了一种新的红外非线性光学 (NLO) 材料,BaIn2Si7P12,具有很大的二次非线性光学系数和高激光诱导损伤值 (LIDT). 这种化物材料对先进的NLO应用具有前途.

科学领域:

材料科学材料科学材料科学
固态化学固态化学
光电学是指光电子产品.

背景情况:

开发先进的红外 (IR) 非线性光学 (NLO) 材料需要平衡大二次NLO系数与高激光诱导损伤值 (LIDT).
钻石类框架 (DLF) 和化物因其NLO特性和高LIDT而闻名,但将这些属性结合起来具有挑战性.

研究的目的:

理性地设计和合成一种具有增强NLO特性和高LIDT的新型四级钻石状框架 (DLF) 化物材料.
调查材料优越性能的结构和电子起源.

主要方法:

拓修改和数学建模用于材料的合理设计.
进行了合成和晶体分析 (空间组*R*3).
用密度函数理论 (DFT) 的计算来理解电子结构和NLO响应.

主要成果:

第一个四级DLF化物BaIn2Si7P12已成功合成.
该材料表现出强烈的NLO反应 (6 × AGS) 和高的LIDT (8.3 × AGS),性能优于大多数报告的DLF化合物.
DFT计算证实,增强的NLO特性源于DLF结构中的[SiP4]和[InP4]四面体的协同效应.

结论:

BaIn2Si7P12代表了IR NLO材料设计的重大进步,展示了NLO活动和抗损坏能力的有希望的组合.
拓修改和数学建模的开发策略对于创建高性能DLF化物是有效的.
DLF化物被确定为未来高性能IR NLO应用的有前途的材料类.

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