Enhancement of upconversion luminescence intensity in NaMgF3:2.5%Yb3+, 0.5%Er3+ nanocrystals with Eu3+ doping

Jing Zhang, Jue Wang, Jinhui Xie, Lixi Wang, Qitu Zhang

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

摘要

NaMgF3:2.5%Yb3+, 0.5%Er3+ nanocrystals with different Eu3+ concentration were synthesized via the hydrothermal method. The intensity of upconversion (UC) luminescence enhanced obviously, especially when Eu3+ concentration was 0.01 mol%. It could be comfirmed that both red and green emission were three photons UC processes according to the relationship between the excitation power and UC luminescence intensity. With the help of nanocrystal morphology, decay time and UC emission spectra analysis, the possible UC luminescence mechanism was discussed in detail. Er3+ played the important role of “bridging ion” in NaMgF3:2.5%Yb3+, 0.5%Er3+, Eu3+ nanocrystals, which resulted in the effective energy transfer pocesses of Yb3+ → Er3+ → Eu3+.

源语言英语
页(从-至)20882-20890
页数9
期刊Journal of Materials Science: Materials in Electronics
32
15
DOI
出版状态已出版 - 8月 2021

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