Details

Autor(en) / Beteiligte

• Zhu, Wei
• Wu, Qixiao
• Zhao, Suling
• Liang, Zhiqin
• Yang, Yongxin
• Zhang, Junjie
• Xu, Zheng

Titel

Enhanced upconversion fluorescence and altered particle size of [beta]-NaGdF sub(4):Yb super(3+)/Er super(3+) nanocrystals by codoping with Mo super(3+) ions

Ist Teil von

• Optical materials express, 2016-09, Vol.6 (9), p.3001-3007

Erscheinungsjahr

2016

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• [beta]-NaGdF sub(4):Yb super(3+)/E r super(3+) nanoparticles (NPs) co-doped with Mo super(3+) ions were prepared for the first time using a solvothermal process at 300 [degrees]C. The influence of the doping concentration of Mo super(3+) ions on the growth and upconversion (UC) luminescence properties of the resulting [beta]-NaGdF sub(4):Yb super(3+)/Er super(3+) nanocrystals were investigated in detail. The morphology and size of the [beta]-NaGdF sub(4):Yb super(3+)/Er super(3+) nanocrystals were influenced by the concentration of the Mo super(3+) dopant ions. A possible mechanism for this behavior is proposed in this report. It was found that the upconversion luminescence intensity of the green emissions of the upconversion NPs co-doped with 10% Mo super(3+) ions was enhanced 9 fold and that the red emission was enhanced 4 fold. The experimental results suggest that the enhanced UC luminescence from the Mo super(3+) doped [beta]-NaGdF sub(4):Yb super(3+)/Er super(3+) nanocrystals may have potential practical applications.