Structural consideration on the emission properties of Eu²⁺-doped Ba(Sr, Ca)₂MgSi₂O₈
Journal Article
·
· Journal of Solid State Chemistry
- Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Miyamae 7-32, Kofu 400-8511 (Japan)
Emission properties of Eu²⁺-doped Ba(Sr, Ca)₂MgSi₂O₈ are discussed in terms of the crystal structure refined by Rietveld method. Ba(Sr, Ca)₂MgSi₂O₈ has glaserite-type layered structure. In response to Sr/(Sr+Ca) ratio, the layer-framework build up by corner-sharing of MgO₆ octahedra and SiO₄ tetrahedra twists around C₃ axes to match the size of B-site cation (Sr²⁺/Ca²⁺). This twist significantly affects the unit cell size and the coordination environment around B-site. Eu²⁺-doped Ba(Sr, Ca)₂MgSi₂O₈ exhibited blue emission under ultraviolet irradiation. The emission spectra have been characterized by two emission components derived from Eu²⁺ ions occupying A- and B-site. Both components showed similar wavelength shift for different Sr/(Sr+Ca), in response to Si–O₁ polarization and to the structural change. - Graphical abstract: Emission properties of Eu²⁺-doped Ba(Sr, Ca)₂MgSi₂O₈ are discussed in terms of the crystal structure refined by Rietveld method. Highlights: • Glaserite-type Ba(Sr, Ca)₂MgS₂O₈ has been prepared by a solid state reaction. • Ba(Sr, Ca)₂MgSi₂O₈ changes the crystal structure, depending on Sr/(Sr+Ca) ratio. • Eu²⁺-doped Ba(Sr, Ca)₂MgSi₂O₈ exhibits blue emission under ultraviolet irradiation. • Emission from Ba(Sr, Ca)₂MgSi₂O₈ is characterized by two Eu²⁺ emission components. • The two emissions show wavelength shift in a similar manner against Sr/(Sr+Ca)
- OSTI ID:
- 22306303
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Vol. 201; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
Similar Records
Crystal structure of Eu{sup 2+}-doped M{sub 3}MgSi{sub 2}O{sub 8} (M: Ba, Sr, Ca) compounds and their emission properties
Crystal structure of Na{sub 2}MMgP{sub 2}O{sub 8} (M: Ba, Sr, Ca) orthophosphates and their luminescence properties activated by Eu{sup 2+}; analogous structural behaviors of glaserite-type phosphates and silicates
Structural investigation of Eu{sup 2+} emissions from alkaline earth zirconium phosphate
Journal Article
·
Sun Mar 15 00:00:00 EDT 2009
· Journal of Solid State Chemistry
·
OSTI ID:21212227
Crystal structure of Na{sub 2}MMgP{sub 2}O{sub 8} (M: Ba, Sr, Ca) orthophosphates and their luminescence properties activated by Eu{sup 2+}; analogous structural behaviors of glaserite-type phosphates and silicates
Journal Article
·
Wed Dec 14 23:00:00 EST 2011
· Journal of Solid State Chemistry
·
OSTI ID:21612823
Structural investigation of Eu{sup 2+} emissions from alkaline earth zirconium phosphate
Journal Article
·
Wed Apr 15 00:00:00 EDT 2009
· Journal of Solid State Chemistry
·
OSTI ID:21370332