The gadolinium effect on crystallization behavior and luminescence of β-NaYF4:Yb,Er phase

被引：5
作者：
Vukovic, Marina [1 ]
Mancic, Lidija [2 ]
Dinic, Ivana [1 ]
Vulic, Predrag [3 ]
Nikolic, Marko [4 ]
Tan, Zhenquan [5 ]
Milosevic, Olivera [2 ]
机构：
[1] Univ Belgrade, Fac Chem, Innovat Ctr, Belgrade, Serbia
[2] SASA, Inst Tech Sci, Belgrade, Serbia
[3] Univ Belgrade, Fac Min & Geol, Belgrade, Serbia
[4] Univ Belgrade, Photon Ctr, Inst Phys Belgrade, Belgrade, Serbia
[5] Dalian Univ Technol, Sch Petr & Chem Engn, Dalian, Peoples R China
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2020年 / 17卷 / 03期
关键词：
Gd-doping; NaYF4; optical materials; up-conversion; UP-CONVERSION LUMINESCENCE; CONCENTRATION QUENCHING MECHANISM; SOLVOTHERMAL SYNTHESIS; GLASS-CERAMICS; NANOCRYSTALS; NANOPARTICLES; PHOTOLUMINESCENCE; EMISSION; PARTICLE; ER;
D O I：
10.1111/ijac.13363
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Single phase beta-NaY0.8-xGdxYb0.18Er0.02F4 nanoparticles with different concentrations of gadolinium ions were prepared via PVP-assisted solvothermal treating at 200 degrees C (PVP- polyvinylpyrrolidone). With the increase in Gd3+ concentration, size of the nanoparticles decreased. The up-converting spectra recorded upon 980 nm irradiation showed the green (510-560 nm) and red (640-690 nm) emissions, due to H-2(11/2), S-4(3/2) -> I-4(15/2) and F-4(9/2) -> I-4(15/2) transitions, respectively. The strongest up-conversion luminescence was detected in 15 mol% Gd3+-doped nanoparticles obtained after 20 hours of solvothermal treating. With the rise of Gd3+ content up-conversion emission decreased due to increased defect concentration in the NaYF4 matrix. Fourier transform infrared spectroscopy proved in situ generation of hydrophilic nanoparticles as a result of PVP ligands retention at the particle surface.
引用
收藏
页码：1445 / 1452
页数：8
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