Back to Search
Start Over
Synthesis and photoluminescence properties of Er3+ doped BaZrO3 nanotube arrays
- Source :
-
Journal of Alloys & Compounds . Jul2012, Vol. 530, p22-25. 4p. - Publication Year :
- 2012
-
Abstract
- Abstract: BaZrO3:Er nanotube (NT) arrays with different Er3+ doped contents have been synthesized by hydrothermal method using ZrO2NT layers as template. XRD, SEM and TEM analysis reveal that the BaZrO3:ErNTs have a cubic perovskite structure with uniform diameter and tubular wall. Photoluminescence (PL) spectra as well as infrared-to-visible up-conversion emissions are investigated in the Er3+ doped BaZrO3NTs at room temperature. PL spectra, excited at 257nm, mainly consist of blue (416nm) and green (510–570nm) emissions from the 2P3/2, 2H11/2, 4S3/2 excited levels of the Er3+ ions to the 4IJ(J =11/2–15/2) levels. Green and strong red (640–690nm, 4F9/2 → 4I15/2) up-conversion emissions are observed under excitation of 980nm by the large amount of OH− absorption, crystal defects, distortion of ErO6 octahedra in the BaZr1−x Er x O3NTs. In addition, the dependence of luminescence intensity on the Er3+ concentration in the NT arrays is studied. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09258388
- Volume :
- 530
- Database :
- Academic Search Index
- Journal :
- Journal of Alloys & Compounds
- Publication Type :
- Academic Journal
- Accession number :
- 75450364
- Full Text :
- https://doi.org/10.1016/j.jallcom.2012.03.092