内在缺陷诱导自激活 CaSb2O6 发出稳定的长持续发光

IF 9.1 1区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Yanbing Han, Qingqing Mo, Zhuangzhuang Ma, Jinglu Zhang, Dongwen Yang*, Ying Liu, Xu Chen, Han Gao*, Xinjian Li, Chongxin Shan and Zhifeng Shi*, 
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引用次数: 0

摘要

长持续发光(LPL)材料因其激发后的迷人发射而备受关注。然而,目前的长持续发光材料通常依赖于外部掺杂来引入陷阱或发光中心,从而导致了复杂的合成和可控性。我们首次在锑酸盐 CaSb2O6 的基础上开发了另一类未掺杂的 LPL 材料,其蓝色 LPL 可持续 8000 秒以上。然后,它们被分离并通过 Sb3+ 的单线和三线发射重新结合,形成 LPL。此外,即使在 1000 °C、紫外线照射和极端条件(pH = 1 或 13)下处理,CaSb2O6 仍能保持约 100% 的初始 LPL 性能和结构完整性。这项研究凸显了锑酸盐作为坚固耐用的多功能发光材料的巨大潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Stable Long-Persistent Luminescence from Self-Activated CaSb2O6 Induced by Intrinsic Defects

Stable Long-Persistent Luminescence from Self-Activated CaSb2O6 Induced by Intrinsic Defects

Long-persistent luminescence (LPL) materials have attracted intensive attention due to their fascinating emission after excitation. However, current LPL materials typically depend on external doping to introduce traps or emitting centers, resulting in a complex synthesis and controllability. For the first time, we develop another category of undoped LPL materials based on antimonate CaSb2O6, which exhibits blue LPL for over 8000 s. Both experimental and theoretical evidence indicate that excitons are trapped by intrinsic oxygen vacancies. Then, they are detrapped and recombine through singlet and triplet emission of Sb3+ to form LPL. Moreover, CaSb2O6 maintains approximately 100% of its initial LPL performance and structural integrity even after being treated under 1000 °C, UV irradiation, and extreme conditions (pH = 1 or 13). This study highlights the significant potential of antimonates as robust and versatile luminescent materials.

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来源期刊
Nano Letters
Nano Letters 工程技术-材料科学:综合
CiteScore
16.80
自引率
2.80%
发文量
1182
审稿时长
1.4 months
期刊介绍: Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.
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