NIR persistent luminescence of lanthanide ion-doped rare-earth oxycarbonates: the effect of dopants

ACS Appl Mater Interfaces. 2014 Oct 22;6(20):17346-51. doi: 10.1021/am504523s. Epub 2014 Oct 13.

Abstract

A series of luminescent rare-earth ion-doped hexagonal II-type Gd oxycarbonate phosphors Gd2-xRExO2CO3 (RE = Eu(3+), Yb(3+), Dy(3+)) have been successfully synthesized by thermal decomposition of the corresponding mixed oxalates. The Yb(3+) doped Gd-oxycarbonate has evidenced a high persistent luminescence in the NIR region, that is independent from the temperature and makes this materials particular attractive as optical probes for bioimaging.

Keywords: NIR luminescence; athermal tunneling luminescence; oxycarbonates; persistent luminescence; rare-earth ions luminescence.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbonates / chemistry*
  • Gadolinium / chemistry
  • Lanthanoid Series Elements / chemistry*
  • Luminescence*
  • Spectroscopy, Near-Infrared*
  • Temperature
  • Time Factors
  • X-Ray Diffraction
  • Ytterbium / chemistry

Substances

  • Carbonates
  • Lanthanoid Series Elements
  • Gadolinium
  • Ytterbium