Back to Search
Start Over
Tuning of Emission by Eu3+ Concentration in a Pyrophosphate: the Effect of Local Symmetry
- Source :
- Inorganic Chemistry. 59:2241-2247
- Publication Year :
- 2019
- Publisher :
- American Chemical Society (ACS), 2019.
-
Abstract
- The local symmetry of a Eu3+ ion has a crucial effect on its luminescence properties. In this work, we show that the red/orange ratio in the emission of Eu3+-doped MgIn2P4O14 phosphors is tunable by adjusting the Eu3+ concentrations, due to the change in the local symmetry of metal ions. The substitution of Eu3+ for In3+ lowers the distortion in the lattice of monoclinic MgIn2P4O14, and an increase in Eu3+ doping concentration causes the metal ion sites to shift closer to an inverse center, leading to a reversal of the relative emission intensity of a magnetic dipole transition to an electric dipole transition. Meanwhile, the higher asymmetry of metal ion sites occupied by Eu3+ in MgIn2P4O14 makes the luminescence less thermally stable than that in Mg3In4P6O24.
- Subjects :
- 010405 organic chemistry
Chemistry
Magnetic dipole transition
media_common.quotation_subject
Metal ions in aqueous solution
Phosphor
010402 general chemistry
01 natural sciences
Molecular physics
Asymmetry
0104 chemical sciences
Ion
Inorganic Chemistry
Local symmetry
Condensed Matter::Strongly Correlated Electrons
Physical and Theoretical Chemistry
Electric dipole transition
Luminescence
media_common
Subjects
Details
- ISSN :
- 1520510X and 00201669
- Volume :
- 59
- Database :
- OpenAIRE
- Journal :
- Inorganic Chemistry
- Accession number :
- edsair.doi...........851ffee2714995d75f55f7f483c322f8