选择性稀土离子对CdS纳米带辐射复合速率的调制

IF 1.5 4区材料科学 Q3 CRYSTALLOGRAPHY

Crystal Research and Technology Pub Date : 2021-02-08 DOI:10.1002/crat.202000170

Xu Ji, Shuang Cheng

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引用次数: 0

摘要

在CdS纳米带(NBs)的晶格中引入稀土离子Er3+、La3+和Y3+，调节其光致发光(PL)过程中的辐射复合率(RRR)。发现这些离子对直接带间跃迁和缺陷相关跃迁的rrr有不同的猝灭作用。只有前者通过Er3+的掺杂大大降低，而La3+和Y3+的掺杂对两者都有一定程度的抑制。选择合适的稀土离子可以实现特定的纯色发光，这是有价值的。

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Modulation on Radiative Recombination Rate of CdS Nanobelts by Selective Rare Earth Ions

Rare earth ions Er3+, La3+, and Y3+ have been introduced into the lattice of CdS nanobelts (NBs) to modulate its radiative recombination rate (RRR) during photoluminescence (PL) process. It is found that these ions have different quenching effects on the RRRs of direct interband transition and defect related transition. Only the former is greatly reduced through Er3+ doping, however, both of them are suppressed to a certain extent by La3+ and Y3+ doping. It is valuable that specific solid color luminescence can be realized through well‐chosen rare earth ions.

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来源期刊

Crystal Research and Technology 化学-晶体学

自引率

6.70%

发文量

121

审稿时长

1.9 months

期刊介绍： The journal Crystal Research and Technology is a pure online Journal (since 2012). Crystal Research and Technology is an international journal examining all aspects of research within experimental, industrial, and theoretical crystallography. The journal covers the relevant aspects of -crystal growth techniques and phenomena (including bulk growth, thin films) -modern crystalline materials (e.g. smart materials, nanocrystals, quasicrystals, liquid crystals) -industrial crystallisation -application of crystals in materials science, electronics, data storage, and optics -experimental, simulation and theoretical studies of the structural properties of crystals -crystallographic computing