Skip to main content
padlock icon - secure page this page is secure

Structure and Luminescence in Long Persistence Eu, Dy, and B Codoped Strontium Aluminate Phosphors: The Boron Effect

Buy Article:

$52.00 + tax (Refund Policy)

Long persistence phosphors are promising materials for energy‐saving applications, due to their ability to temporarily store and release light. While boron is known to dramatically extend the afterglow persistence to longer than 8 h in strontium aluminates, previous attempts to understand the role of boron neglected any nanoscale‐related effects and have been inconclusive. Herein, nanoscale‐resolved cathodoluminescence mapping is correlated with selected area electron diffraction and with energy dispersive x‐ray spectroscopy analysis using a 2 Å‐diameter probe. The salient aspect of this unique approach is that one can not only determine the elemental distribution in the phosphor microstructure, but more importantly, one can discriminate between the distributions of different divalent and trivalent luminescing ions. We demonstrate that the extremely long afterglow is due to the boron dopant via two key roles: (1) facilitating dominance of the long persistence phase during the microstructural evolution and (2) promoting more uniform distribution of the optically active, Eu2+ ion in the Sr2+ cation sublattice.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Document Type: Research Article

Publication date: June 1, 2016

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more