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Enhanced upconversion luminescence in LuPO4:Ln3+ phosphors via optical-inert ions doping

Abstract

The upconversion luminescence (UCL) properties of Yb3+/Ho3+ (Er3+) co-doped or tri-doped LuPO4 phosphors were studied and compared. To further improve the UCL intensity and control the emission color, optical-inert ions such as Li+, Ca2+ and Gd3+ were doped into this system. Compared to the optical-inert ions-free counterpart, the red UCL of LuPO4:20% Yb3+/1% Er3+/1% Ho3+ with 5% Li+/10% Ca2+/10% Gd3+ doping is enhanced by 5.93 times. It is worthwhile pointing out that the optical-inert ions doping could not change the intensity of red to green ratio at all. Therefore, the emission color was still maintained whether doping which kind of optical-inert ions. Moreover, the reasons for the above experimental phenomenon were also discussed in detail.

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Publication details

The article was received on 14 Jun 2018, accepted on 27 Jul 2018 and first published on 06 Aug 2018


Article type: Paper
DOI: 10.1039/C8NJ02966K
Citation: New J. Chem., 2018, Accepted Manuscript
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    Enhanced upconversion luminescence in LuPO4:Ln3+ phosphors via optical-inert ions doping

    Z. Zhang, R. Cao, L. Guo, P. Li, C. Liang and T. Li, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ02966K

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