Published April 2014 | Version v1
Journal article Metadata-only

Valences of dopants in Eu2+ persistent luminescence materials

Creators

  • 1. University of Turku, Department of Chemistry, Turku (Finland)
  • 2. Universidade de São Paulo, Instituto de Química, São Paulo (Brazil)
  • 3. MAX-Lab, Lund University, Lund (Sweden)
  • 4. DESY, A Research Centre of the Helmholtz Association, Hamburg (Germany)

Description

The existence and effect of different rare earth (R2+/3+/IV) ions in SrAl2O4:Eu2+,R3+ and M2MgSi2O7:Eu2+,R3+ (M: Sr, Ba) persistent luminescence materials was studied with XANES (x-ray absorption near edge structure) measurements at HASYLAB/DESY (Hamburg, Germany) and MAX-lab (Lund, Sweden). The experiments were carried out at 298 K for selected rare earth (co-)dopants (Eu2+; Ce3+, Nd3+, Sm3+, Dy3+ and Yb3+). The co-existence of Eu2+ and Eu3+ was observed in all materials. The co-dopants were always in the trivalent form. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/0031-8949/89/04/044004

Additional details

Identifiers

DOI
10.1088/0031-8949/89/04/044004;

Publishing Information

Journal Title
Physica Scripta (Online)
Journal Volume
89
Journal Issue
4
Journal Page Range
[3 p.]
ISSN
1402-4896

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46060116
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ABSORPTION SPECTROSCOPY; CERIUM IONS; DOPED MATERIALS; DYSPROSIUM IONS; EUROPIUM IONS; LUMINESCENCE; NEODYMIUM IONS; RARE EARTHS; SAMARIUM IONS; TEMPERATURE RANGE 0273-0400 K; VALENCE; VANADIUM IONS; X RADIATION; X-RAY SPECTROSCOPY; YTTERBIUM IONS
Descriptors DEC
CHARGED PARTICLES; ELECTROMAGNETIC RADIATION; ELEMENTS; EMISSION; IONIZING RADIATIONS; IONS; MATERIALS; METALS; PHOTON EMISSION; RADIATIONS; SPECTROSCOPY; TEMPERATURE RANGE