Equivalent cation-tuning to realize a new Ce(iv) fluoride with excellent comprehensive nonlinear optical performances†

IF 6.4 1区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Frontiers Pub Date : 2024-09-30 DOI:10.1039/D4QI02088J

Bei-Bei Zhang, Wen-Ye Gao, Wei Xu, Liang Ma, Wenlong Liu, Ru-Ling Tang and Sheng-Ping Guo

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Abstract

Exploring nonlinear optical (NLO) halide materials has become a hot research field owing to their diverse structures and excellent optical properties. In this paper, a new inorganic tetravalent cerium fluoride NH₄Ce₃F₁₃ was obtained. It crystallizes in the polar space group of Pmc2₁ and exhibits a three-dimensional {[Ce₃F₁₃]⁻}_∞ framework, which is composed of {[CeF₈]⁴⁻}_∞ chains and {[CeF₆]²⁻}_∞ layers formed by CeF₉ polyhedra, with the NH₄⁺ cation balancing the charge. NH₄Ce₃F₁₃ exhibits a strong second-harmonic generation (SHG) response among inorganic metal fluorides of about 1.2 times greater than that of KH₂PO₄ (KDP) and a high laser-induced damage threshold (LIDT), which is 39 times more than that of AgGaS₂. Besides, NH₄Ce₃F₁₃ possesses the largest band gap among Ce(IV)-containing NLO materials. This work provides a good case for exploring high-performance NLO fluoride materials.

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通过等价阳离子调整实现具有优异综合非线性光学性能的新型氟化铈（IV）

非线性光学（NLO）卤化物材料结构多样，光学性能优异，因此探索非线性光学（NLO）材料已成为一个热门研究领域。本文获得了一种新的无机四价氟化铈 NH4Ce3F13。它在极性空间群 Pmc21 中结晶，具有三维{[Ce3F13]-}∞框架，该框架由{[CeF8]4-}∞链和 CeF9 多面体形成的{[CeF6]2-}∞层构建而成，NH4+阳离子平衡电荷。NH4Ce3F13 在无机金属氟化物中表现出较强的二次谐波发生（SHG）响应，约为 KH2PO4（KDP）的 1.2 倍，并且具有较高的激光诱导损伤阈值（LIDT），是 AgGaS2 的 39 倍。此外，NH4Ce3F13 还是含 Ce（IV）NLO 材料中带隙最大的一种。这项研究为探索高性能氟化物 NLO 材料提供了一个很好的案例。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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