Browsing by Subject co-precipitation technique

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  • Authors: Duong, Thi Mai Huong; Le, Van Vu; Nguyen, Ngoc Long; Duong, Ngoc Thanh (2016)

  • CaF2nanoparticles doped with 0, 1, 2, 3, 4 and 5 mol% Sm3+ were prepared by co-precipitation method. These nanoparticles were studied by X-ray diffraction (XRD), transmission electron microscopy (TEM), photoluminescence (PL), photoluminescence excitation (PLE) spectra, energy-dispersive X-ray spectroscopy (EDS) and diffuse reflective spectra. The XRD patterns indicate cubic structure of CaF2 and no other impurities. TEM images show that CaF2 nanoparticles have size varying from 15 to 20 nm. The photoluminescence spectra show 4 peaks at 566 nm, 604 nm, 645 nm and 704 nm, which are assigned to different transitions from the 4G(4)5/2 excited state to the 6HJ with J = 5/2; 7/2; 9/2 and ...

Browsing by Subject co-precipitation technique

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 1 of 1
  • 25.pdf.jpg
  • Article


  • Authors: Duong, Thi Mai Huong; Le, Van Vu; Nguyen, Ngoc Long; Duong, Ngoc Thanh (2016)

  • CaF2nanoparticles doped with 0, 1, 2, 3, 4 and 5 mol% Sm3+ were prepared by co-precipitation method. These nanoparticles were studied by X-ray diffraction (XRD), transmission electron microscopy (TEM), photoluminescence (PL), photoluminescence excitation (PLE) spectra, energy-dispersive X-ray spectroscopy (EDS) and diffuse reflective spectra. The XRD patterns indicate cubic structure of CaF2 and no other impurities. TEM images show that CaF2 nanoparticles have size varying from 15 to 20 nm. The photoluminescence spectra show 4 peaks at 566 nm, 604 nm, 645 nm and 704 nm, which are assigned to different transitions from the 4G(4)5/2 excited state to the 6HJ with J = 5/2; 7/2; 9/2 and ...