Photoluminescence and afterglow of deep red emitting SrSc 2 O 4 :Eu 2
This work deals with the photoluminescence (PL) properties of SrSc 2 O 4 :Eu 2+ and SrSc 2 O 4 :Eu 2+ ,Dy 3+ . For this purpose a series of powder samples of SrSc 2 O 4 with various concentrations of Eu 2+ and Dy 3+ was prepared. The samples were synthesised via a high temperature solid state route....
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| Published in | RSC advances Vol. 6; no. 10; pp. 8483 - 8488 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
2016
|
| Online Access | Get full text |
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| Summary: | This work deals with the photoluminescence (PL) properties of SrSc
2
O
4
:Eu
2+
and SrSc
2
O
4
:Eu
2+
,Dy
3+
. For this purpose a series of powder samples of SrSc
2
O
4
with various concentrations of Eu
2+
and Dy
3+
was prepared. The samples were synthesised
via
a high temperature solid state route. Phase purity was investigated by conducting X-ray powder diffractometry. The PL properties of all prepared samples were elucidated by recording PL and PL excitation spectra. Furthermore, the temperature behaviour of the PL of SrSc
2
O
4
:Eu
2+
was investigated from 100 to 500 K. Diffuse reflectance spectra were recorded to investigate the optical properties of Eu
2+
doped SrSc
2
O
4
. Additionally, persistent luminescence of SrSc
2
O
4
:Eu
2+
and SrSc
2
O
4
:Eu
2+
,Dy
3+
was investigated. To this end, PL lifetime measurements were conducted. SrSc
2
O
4
:Eu
2+
shows an emission band in the deep red spectral range. Moreover, it turned out that the red emission of SrSc
2
O
4
:Eu
2+
shows persistent luminescence too. |
|---|---|
| ISSN: | 2046-2069 2046-2069 |
| DOI: | 10.1039/C5RA25686K |