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Effect of H3BO3 flux on the morphology and optical properties of Sr2MgAl22O36:Mn4+ red phosphors for agricultural light conversion films.
- Source :
-
Ceramics International . Aug2016, Vol. 42 Issue 11, p13011-13017. 7p. - Publication Year :
- 2016
-
Abstract
- H 3 BO 3 was added during the preparation of Sr 2 MgAl 22 O 36 :Mn 4+ phosphors by a high-temperature solid-state reaction method. The influence of H 3 BO 3 flux on the crystal structure, particle morphology and photoluminescence properties of the Sr 2 MgAl 22 O 36 :Mn 4+ phosphors was investigated by employing X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence spectroscopy, respectively. The results indicate that adding H 3 BO 3 flux can improve the luminescence intensity and morphology, and reduce the synthesis temperature of the Sr 2 MgAl 22 O 36 phosphor. The formation temperature of pure-phase Sr 2 MgAl 22 O 36 was significantly decreased when H 3 BO 3 flux as introduced. The excited state lifetime of the Sr 2 MgAl 22 O 36 :1.2 mol% Mn 4+ phosphor by the addition of 2.0 wt% H 3 BO 3 was ~1.02 ms. We demonstrated the potential of these phosphors to enhance sunlight harvesting by agricultural light conversion film testing. We propose that films containing the Sr 2 MgAl 22 O 36 :1.2 mol% Mn 4+ phosphor can be applied to increase the production of agricultural plants. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 42
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 115979769
- Full Text :
- https://doi.org/10.1016/j.ceramint.2016.05.076