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李丽华,张翔,李新利,黄金亮,Alex A. Volinsky C.Er3+和Yb3+共掺ZnS纳米晶的合成及光学性能研究[J].稀有金属材料与工程(英文),2018,47(6):1744~1748.[Lihua Li,Xiang Zhang,Xinli Li,Jinliang Huang and Alex A. Volinsky C.Synthesis and Photoluminescence of Er3+ by Doping Yb3+ in ZnS Nanocrystals[J].Rare Metal Materials and Engineering,2018,47(6):1744~1748.]
Synthesis and Photoluminescence of Er3+ by Doping Yb3+ in ZnS Nanocrystals
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Received:July 01, 2016  Revised:September 02, 2016
DOI:
Key words: ZnS:Er/Yb  nanocrystals, hydrothermal, photoluminescence
Foundation item:NSFC((51332003-1))
Author NameAffiliation
Lihua Li,Xiang Zhang,Xinli Li,Jinliang Huang and Alex A. Volinsky C  
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Abstract:
      ZnS: Er/Yb nanocrystals were synthesized by the hydrothermal method using thioglycolic acid as a stabilizer. The crystalline phases, morphology, chemical bond states and photoluminescent properties of the nanoparticles were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoemission spectroscopy and fluorescence photometer. The results show that most prepared nanoparticles are spherical in shape with an average size of 5 nm, and have cubic zinc blende crystal structure. The emission spectrum of ZnS:Er/Yb nanocrystals excited at 270 nm displays three main peaks at 470 nm, 530 nm and 580 nm, and the intensity of fluorescence peaks is the strongest for nanocrystals prepared at 120 C. When ZnS:Er/Yb nanocrystals were excited at 980 nm, the emission peaks around 540 nm and 650 nm appeared, associated with the 4F3/2→4I15/2 and 4F9/2→4I15/2 of Er3+ ions transitions.