高缺陷容限打破全光谱多模态发光材料的设计局限

IF 26.8 1区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Pan Zhang, Xiaohui Zhao, Zhenwei Jia, Jiabin Dong, Tianlong Liang, Yue Liu, Qilin Cheng, Liqun Ding, Li Wu, Dengfeng Peng, Yongfa Kong, Yi Zhang, Jingjun Xu
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引用次数: 0

摘要

随着光学防伪技术的发展和高层次信息加密需求的不断提高,多模态发光材料受到了广泛的关注。然而,这些多功能材料的发现是非常偶然的,适合开发这些材料的多功能宿主尚不清楚。本研究发现了一种具有层状隧道结构、缺陷容忍度优异的grossite型快速离子导体CaGa4O7,可以满足各种发光工艺的需要。几乎所有的发光模式,包括下/上转换发光(DCL/UCL)、长持续发光(LPL)、机械发光(ML)和x射线激发光学发光(XEOL),都是在这个单一主机上实现的。通过简单地改变掺杂的发光中心,可以实现全光谱(从紫外光到近红外)光致发光和ML以及多色XEOL。通过设计名画准动态展示、数字信息加密、多色手写签名等一系列防伪装置,展现信息在时空维度上的加密。本研究阐明了基体缺陷容限对MML材料发展的重要性,并对特殊功能材料的跨领域应用提供了独特的见解,是加快新型MML材料发展的新策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

High Defect Tolerance Breaking the Design Limitation of Full-Spectrum Multimodal Luminescence Materials

High Defect Tolerance Breaking the Design Limitation of Full-Spectrum Multimodal Luminescence Materials

High Defect Tolerance Breaking the Design Limitation of Full-Spectrum Multimodal Luminescence Materials

High Defect Tolerance Breaking the Design Limitation of Full-Spectrum Multimodal Luminescence Materials

High Defect Tolerance Breaking the Design Limitation of Full-Spectrum Multimodal Luminescence Materials

High Defect Tolerance Breaking the Design Limitation of Full-Spectrum Multimodal Luminescence Materials

With the development of optical anti-counterfeiting and the increasing demand for high-level information encryption, multimodal luminescence (MML) materials attract much attention. However, the discovery of these multifunctional materials is very accidental, and the versatile host suitable for developing such materials remains unclear. Here, a grossite-type fast ionic conductor CaGa4O7, characterized by layered and tunnel structure with excellent defect tolerance, is found to meet the needs of various luminescent processes. Almost all luminescent modes, including down/up-conversion luminescence (DCL/UCL), long persistent luminescence (LPL), mechanoluminescence (ML), and X-ray excited optical luminescence (XEOL), are realized in this single host. Full-spectrum (from violet to near-infrared) photoluminescence and ML as well as multicolor XEOL are achieved by simply changing the doped luminescent center. A series of anti-counterfeiting devices, including the quasi-dynamic display of famous paintings, digital information encryption, and multi-color handwritten signatures, are designed to show the encryption of information in temporal and spatial dimensions. This study clarifies the importance of defect tolerance of the host for the development of MML materials, and provides a unique insight into the cross-field applications of special functional materials, which is a new strategy to accelerate the development of novel MML materials.

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来源期刊
Advanced Materials
Advanced Materials 工程技术-材料科学:综合
CiteScore
43.00
自引率
4.10%
发文量
2182
审稿时长
2 months
期刊介绍: Advanced Materials, one of the world's most prestigious journals and the foundation of the Advanced portfolio, is the home of choice for best-in-class materials science for more than 30 years. Following this fast-growing and interdisciplinary field, we are considering and publishing the most important discoveries on any and all materials from materials scientists, chemists, physicists, engineers as well as health and life scientists and bringing you the latest results and trends in modern materials-related research every week.
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