We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Influence of Eu<sup>3+</sup> ions in Na<sub>0.5</sub>La<sub>0.5</sub>MoO<sub>4</sub>: structural and optical investigation.
- Authors
Krishnan, R.; Thirumalai, J.; Shameem Banu, I. B.; Chandramohan, R.
- Abstract
Intense red-emitting phosphor Na 0.5La 0.5−xMoO 4:xEu 3+ (x = 0.02, 0.04, 0.06, 0.08, 0.10 mol of Eu 3+) was prepared at 900 °C for 3 h using conventional solid-state reaction method. Crystal structure and phase purity of the phosphor were identified using X-ray diffraction analysis. The morphology and composition of the materials were examined by scanning electron microscope, energy dispersive X-ray spectrum, and X-ray photoelectron spectroscopy, respectively. The diffuse reflectance spectra of Na 0.5La 0.5−xMoO 4:xEu 3+ showing a significant shift in the band gap (0.14 eV) was observed due to increase in doping concentration of Eu 3+. Photoluminescence and decay time (τ) study on Na 0.5La 0.5−xMoO 4:xEu 3+ showed strong red emission upon UV illumination, and this implied potential application in the field of luminescent displays.
- Subjects
EUROPIUM isotopes; METAL ions; SODIUM compounds; MOLYBDENUM oxides; OPTICAL properties of metals; CRYSTAL structure
- Publication
Journal of Materials Science: Materials in Electronics, 2013, Vol 24, Issue 12, p4774
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-013-1473-y