%0 Journal Article
%T Synthesis and Characterization of Triply Doped Nano-Composite Alumina-Phospho- Silicates SiO<sub>2</sub>-P<sub>2</sub>O<sub>5</sub>-Al<sub>2</sub>O<sub>3</sub> with Er<sup>3+</sup>, Sm<sup>3+</sup> and Yb<sup>3+</sup> Ions Prepared by Sol Gel Technique in Two Different Forms Thin Film and  Monolith
%A I. K. Battisha
%A M. A. Salem
%A Y. Badr
%A M. Kamal
%A A. M. S. El Nahrawy
%J New Journal of Glass and Ceramics
%P 1-7
%@ 2161-7562
%D 2016
%I Scientific Research Publishing
%R 10.4236/njgc.2016.61001
%X Nano-composite monolith
and thin film Alumina-Phospho-Silicates (SiO<sub>2</sub>-P<sub>2</sub>O<sub>5</sub>-Al<sub>2</sub>O<sub>3</sub>):Ln
(Ln = Sm, Er, Yb) glasses activated by triply doped with three
different rare earth ions (REIs) (Er<sup>3+</sup>:Yb<sup>3+</sup>:Sm<sup>3+</sup>)
were prepared by modified sol-gel process. The composition of the prepared
samples was <span>as follow (SiO<sub>2</sub>:11P<sub>2</sub>O<sub>5</sub>:3Al<sub>2</sub>O<sub>3</sub>:1.2Er<sub>2</sub>O<sub>3</sub>:(1.2
- 3)Yb<sub>2</sub>O<sub>3</sub>:(0.7 - 1.3)Sm<sub>2</sub>O<sub>3</sub>). Tetra-ethyl-orthosilicate</span> (TEOS), tri-ethyl-phosphate (TEP), erbium nitrate, ytterbium nitrate and
samarium nitrate were used as precursor materials, respectively. The structure
of the prepared samples was studied using X-ray diffraction (XRD), which
revealed that the crystallite sizes of monolith and thin film samples both
sintered at 900¡æ&nbsp;at constant Sm<sup>3+</sup> concentration at 1.3 mol% (SPAE<sub>1.2</sub>Y<sub>1.8</sub>S<sub>1.3</sub>)
have the following values 44 and 31 nm, respectively. Transmission Electron
Microscopy (TEM) of the same prepared samples was used to confirm the presence
of nano-structure phase. The photo-luminescence study will be evaluated for the
prepared.
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%K Sol Gel
%K XRD
%K TEM and Photoluminescence
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=62890