Author(s)

I. K. Battisha¹, M. A. Salem¹, Y. Badr², M. Kamal³, A. M. S. El Nahrawy¹

¹Department of Solid State Physics, National Research Center (NRC), Dokki, Egypt.
²National Institute of Laser Enhancement Sciences (NILES), Cairo University, Giza, Egypt.
³Physics Department, El Mansoura University, Mansoura, Egypt.

Nano-composite monolith and thin film Alumina-Phospho-Silicates (SiO₂-P₂O₅-Al₂O₃):Ln (Ln = Sm, Er, Yb) glasses activated by triply doped with three different rare earth ions (REIs) (Er³⁺:Yb³⁺:Sm³⁺) were prepared by modified sol-gel process. The composition of the prepared samples was as follow (SiO₂:11P₂O₅:3Al₂O₃:1.2Er₂O₃:(1.2 - 3)Yb₂O₃:(0.7 - 1.3)Sm₂O₃). Tetra-ethyl-orthosilicate (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℃ at constant Sm³⁺ concentration at 1.3 mol% (SPAE_1.2Y_1.8S_1.3) 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.

Sol Gel, XRD, TEM and Photoluminescence

Battisha, I. , Salem, M. , Badr, Y. , Kamal, M. and Nahrawy, A. (2016) Synthesis and Characterization of Triply Doped Nano-Composite Alumina-Phospho- Silicates SiO₂-P₂O₅-Al₂O₃ with Er³⁺, Sm³⁺ and Yb³⁺ Ions Prepared by Sol Gel Technique in Two Different Forms Thin Film and Monolith. New Journal of Glass and Ceramics, 6, 1-7. doi: 10.4236/njgc.2016.61001.