Room-Temperature and Ultrafast Synthesis of Sub-4 nm Yb3+/Nd3+ Ions-Doped CaMoO4 Nanocrystals with Near-Infrared Photoluminescence Quantum Yield of 40%

IF 9.8 1区 物理与天体物理 Q1 OPTICS
Mengxin Liu, Jiejun Pan, Xinan Shi, Bingsuo Zou, Daocheng Pan
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引用次数: 0

Abstract

Rare-earth doped metal oxide nanocrystals with high visible luminescence have been widely used in lighting and display applications owing to their low toxicity, and excellent thermal and chemical stability. However, the room-temperature preparation of near-infrared (NIR) luminescent rare-earth doped metal oxide nanocrystals remains a challenge. Herein, sub-4 nm Yb3+/Nd3+-doped CaMoO4 nanoparticles are prepared by a facile room-temperature ligand-assisted coprecipitation method, which can be completed within 1 min under ambient conditions. Short-chain butyric acid and butylamine as binary ligands play a crucial role in the synthesis of NIR luminescent nanoparticles. The as-prepared nanocrystals can be well dispersed in organic solvents such as chloroform since they are capped with butyric acid and butylamine. The energy transfers from MoO 4 2 ${\rm MoO}^{2-}_{4}$ ions to Yb3+ and Nd3+ ions are systematically investigated in CaMoO4:Yb3+ and CaMoO4:Nd3+ nanoparticles, respectively. More importantly, this ultrafast and room-temperature synthesis strategy is particularly suitable for the large-scale preparation of Yb3+/Nd3+-doped CaMoO4 nanoparticles (≈23 g) with NIR emission, which provides new ideas and possibilities for the commercial production of extremely small and NIR-emitting nanophosphors.

Abstract Image

室温和超快合成亚4 nm Yb3+/Nd3+离子掺杂CaMoO4纳米晶体,近红外光致发光量子产率达40%
稀土掺杂金属氧化物纳米晶体由于其低毒性、优异的热稳定性和化学稳定性,在照明和显示领域得到了广泛的应用。然而,室温制备近红外(NIR)发光稀土掺杂金属氧化物纳米晶体仍然是一个挑战。本文采用简单的室温配体辅助共沉淀法制备了亚4 nm的Yb3+/Nd3+掺杂CaMoO4纳米颗粒,在室温条件下可在1 min内完成。短链丁酸和丁胺作为二元配体在近红外发光纳米粒子的合成中起着至关重要的作用。制备的纳米晶体由于被丁酸和丁胺覆盖,可以很好地分散在氯仿等有机溶剂中。系统地研究了MoO42 - ${\rm MoO}^{2-}_{4}$离子在CaMoO4:Yb3+和CaMoO4:Nd3+纳米颗粒中向Yb3+和Nd3+离子的能量转移。更重要的是,这种超快的室温合成策略特别适合于大规模制备具有近红外发射的Yb3+/Nd3+掺杂CaMoO4纳米粒子(≈23 g),这为极小的近红外发射纳米荧光粉的商业化生产提供了新的思路和可能性。
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来源期刊
CiteScore
14.20
自引率
5.50%
发文量
314
审稿时长
2 months
期刊介绍: Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications. As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics. The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.
文献相关原料
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阿拉丁
Ethanol
阿拉丁
Butylamine
阿拉丁
Butyric acid
阿拉丁
Neodymium nitrate hexahydrate
阿拉丁
Ytterbium nitrate pentahydrate
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