(C2H10N2)[Zn2(HPO4)2Cl2]: substitution-activated new short-wave ultraviolet phosphate with pivotal dual-property enhancement†

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2024-09-16 DOI:10.1039/D4TC03504F

Zhi Fang, Yu-Ming Pan, Pei Han, Bing-Ping Yang and Mei-Hong Duan

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Abstract

Exploration of ultraviolet phosphates with large optical anisotropy is of great significance to the development of ultraviolet lasers. Nevertheless, due to the inherent contradiction between wide band gap and large birefringence, the exploration of ultraviolet phosphates with improved optical anisotropy is a great challenge. Herein, a new short-wave ultraviolet phosphate of (C₂H₁₀N₂)[Zn₂(HPO₄)₂Cl₂] was rationally obtained through a substitution-oriented design strategy, namely the excess substitution of bridging O²⁻ with Cl⁻ and OH⁻ as well as the aliovalent substitution of K⁺ with ethylenediamine polycations with reference to the prototype of β-K₂[Zn₂(PO₄)₂]. Having benefitted from this substitution, (C₂H₁₀N₂)[Zn₂(HPO₄)₂Cl₂] was characterized by dual property enhancement as compared with β-K₂[Zn₂(PO₄)₂]. Specifically, the band gap was expanded from 3.848 eV to 5.043 eV and the birefringence was dramatically enlarged from 0.011@546 nm to 0.066@546 nm, indicating the feasibility of substitution for the design of ultraviolet phosphates with enhanced birefringence.

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(C2H10N2)[Zn2(HPO4)2Cl2]：取代激活的新型短波紫外磷酸盐，具有关键的双重性能增强作用†。

探索具有大光学各向异性的紫外磷酸盐对紫外激光器的发展具有重要意义。然而，由于宽带隙与大双折射之间的内在矛盾，探索具有更好光学各向异性的紫外磷酸盐是一项巨大的挑战。本文通过以取代为导向的设计策略，即以 Cl- 和 OH- 过量取代桥接的 O2-，以及以乙二胺多阳离子取代 K+的别价，合理地获得了一种新型的 (C2H10N2)[Zn2(HPO4)2Cl2]短波紫外磷酸盐，其原型为 β-K2[Zn2(PO4)2]。与 β-K2[Zn2(PO4)2]相比，(C2H10N2)[Zn2(HPO4)2Cl2]受益于这种取代，具有双重性质增强的特点。具体地说，带隙从 3.848 eV 扩大到 5.043 eV，双折射从 0.011@546 nm 显著扩大到 0.066@546 nm，这表明替代设计具有增强双折射的紫外磷酸盐是可行的。

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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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.