Synthesis and photoluminesence properties of NaCa4(BO3)3:XEu2+, xCe3+ codoped with lanthanide
Journal of Ceramic Processing Research, cilt.17, sa.9, ss.956-960, 2016 (Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 17 Sayı: 9
- Basım Tarihi: 2016
- Dergi Adı: Journal of Ceramic Processing Research
- Derginin Tarandığı İndeksler: Scopus
- Sayfa Sayıları: ss.956-960
- Anahtar Kelimeler: Borates, Combustion method, Luminescence, Pnosphors, Rare-earth
- Çukurova Üniversitesi Adresli: Evet
Özet
A new borate compound NaCa4(BO3)3:xEu2+,xCe3+ co-doped with Eu2+ and, Ce3+ was prepared by combustion synthesis method using rare-earth nitrates, urea, and boric acid as starting materials. The prepared sample was characterized through X-ray diffraction (XRD), scanning electron microscope (SEM), and fourier transform infrared spectra (FTIR). The energy dispersive x-ray spectrometer (EDX) confirmed the presence of the Na, Ca, B, O, Eu, and Ce. The photoluminescence (PL) excitation and emission spectra of the Eu2+, Ce3+co-doped NaCa4(BO3)3were also investigated using spectrometer at room temperature.The excitation spectrum consists of an intense band peaking at 352 nm. The emission spectrum shows a single intensive band centered at 445 nm, which correspond to the 4f65d1 -4f7. For the excitation wavelength of 352 nm the emission intensity increases intially with the increase of lanthanide concentration and reaches to the maximum at x = 0.05 nm.The critical distance of concentration quenching, the luminescence lifetime have also been investigated.