Synthesis and Photoluminescent Properties of Li2SrSiO4:Pb2+
JOURNAL OF APPLIED SPECTROSCOPY, cilt.81, sa.2, ss.336-340, 2014 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 81 Sayı: 2
- Basım Tarihi: 2014
- Doi Numarası: 10.1007/s10812-014-9933-6
- Dergi Adı: JOURNAL OF APPLIED SPECTROSCOPY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.336-340
- Anahtar Kelimeler: silicate phosphors, luminescence, X-ray powder diffraction, LUMINESCENCE PROPERTIES, EMITTING PHOSPHOR, ENERGY-TRANSFER, PB2+, EU2+, IONS, CE3+
- Yozgat Bozok Üniversitesi Adresli: Evet
Özet
Pure and Pb2+ doped Li2SrSiO4 materials were synthesized at 900A degrees C for 12 h in air. The phases of the synthesized materials were determined by X-ray powder diffraction (XRD). The photoluminescence properties of the synthesized phosphors were investigated by spectrofl uorometry at room temperature. The emission and excitation bands of Li2SrSiO4:Pb2+ were observed at 381 and 271 nm, respectively. The dependence of the emission intensity on Pb2+ concentration for Li(2)Sr(1-x)PbxSiO(4) was studied in detail. It was observed that the optimum concentration of Pb2+ in Li2SrSiO4 is 0.01 mol.%. The Stokes shifts of Li2SrSiO4:Pb2+ phosphor was calculated to be 10653 cm(-1).