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Linear structural evolution induced tunable photoluminescence in clinopyroxene solid-solution phosphors.
- Source :
-
Scientific Reports . 11/22/2013, p1-7. 7p. - Publication Year :
- 2013
-
Abstract
- Clinopyroxenes along the Jervisite (NaScSi2O6) - Diopside (CaMgSi2O6) join have been studied, and a solid-solution of the type (Na1-xCax)(Sc1-xMgx)Si2O6 has been identified in the full range of 0⩽x⩽1. The powder X-ray patterns of all the phases indicate a structural similarity to the end compounds and show smooth variation of structural parameters with composition. The linear structural evolution of iso-structural (Na1-xCax)(Sc1-xMgx)Si2O6 solid-solutions obeying Vegard's rule has also been examined and verified by high resolution transmission electron microscopy (HRTEM). The continuous solid-solutions show the same structural type, therefore the photoluminescence spectra of Eu2+ doped samples possess the superposition of spectral features from blue-emitting component (CaMgSi2O6:Eu2+) and yellow-emitting one (NaScSi2O6:Eu2+). This indicates that the spectroscopic properties of (Na1-xCax)(Sc1-xMgx)Si2O6 clinopyroxene solid-solutions are in direct relations with structural parameters, and it is helpful for designing color-tunable photoluminescence with predetermined parameters. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHOTOLUMINESCENCE
*PHOSPHORS
*DIOPSIDE
*SOLID solutions
*ELECTRON microscopy
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Database :
- Academic Search Index
- Journal :
- Scientific Reports
- Publication Type :
- Academic Journal
- Accession number :
- 92616269
- Full Text :
- https://doi.org/10.1038/srep03310