Zr4+离子共掺杂增强Y2O3:Er3+和Y2O3:Yb3+/Er3+亚微晶体的发光性能

IF 4.3 Q2 CHEMISTRY, PHYSICAL

Chemical Physics Impact Pub Date : 2025-02-07 DOI:10.1016/j.chphi.2025.100846

Zixuan Jiang , Bing Liu , Zehua Zhang , Lili Wang , Zhixu Jia , Dan Zhao

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引用次数: 0

摘要

在980 nm激发下，研究了Zr4+离子共掺杂对尿素沉淀法制备的Y2O3: Er3+和Y2O3: Er3+， Yb3+亚微晶体可见光区上转换发光性能的影响。与原始的Y2O3: Er3+和Y2O3: Er3+， Yb3+亚微晶体相比，Zr4+离子共掺杂后，具有相似尺寸的亚微晶体的UC发光增强。通过发光光谱、衰减曲线分析和合适的能级图对UC的发光特性进行了详细的讨论。两系Zr4+离子掺杂亚微晶体中UC发光增强机理归因于Zr4+离子共掺杂导致Er3+离子周围形成复杂的晶体场。Zr4+离子取代Y3+离子进入晶格后，电荷失配和晶格畸变使晶体场更加复杂。本研究有助于理解镧系（Ln3+）离子掺杂UC材料的UC发光特性及其在生物成像、药物传递、光学温度传感器等领域的技术应用。

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Luminescence enhancement of Y2O3:Er3+ and Y2O3:Yb3+/Er3+ sub-microcrystals by Zr4+ ions Co-doping

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Luminescence enhancement of Y2O3:Er3+ and Y2O3:Yb3+/Er3+ sub-microcrystals by Zr4+ ions Co-doping

The co-doping effect of Zr⁴⁺ ions on upconversion (UC) luminescent properties in visible region of Y₂O₃: Er³⁺ and Y₂O₃: Er³⁺, Yb³⁺ sub-microcrystals prepared by urea precipitation method has been investigated under 980 nm excitation. Compared with the original Y₂O₃: Er³⁺ and Y₂O₃: Er³⁺, Yb³⁺ sub-microcrystals, the UC luminescence of sub-microcrystals with similar size was enhanced after Zr⁴⁺ ions co-doping. The UC luminescent properties have been discussed in detail via luminescence spectra, decay curve analysis and a suitable energy level diagram. The enhancement mechanism of UC luminescence in the two series of Zr⁴⁺ ions doped sub-microcrystals was attributed to the complex crystal field around Er³⁺ ions caused by Zr⁴⁺ ions co-doping. After Zr⁴⁺ ions substituted Y³⁺ions and entered the crystal lattice, the charge mismatch and lattice distortion made the crystal field more complex. This research contributes to the understanding of UC luminescent properties of lanthanide (Ln³⁺) ions doped UC materials and their technological applications in fields such as bioimaging, drug delivery, and optical temperature sensors.

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来源期刊

Chemical Physics Impact Materials Science-Materials Science (miscellaneous)

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

46 days