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Effect of nanoscaled SiO(2) coating on luminescent properties of blue phosphors
- Issue Date
- Sep-2008
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- atomic layer deposition; BaMgAl(10)O(17): Eu(+) phosphor; silicon oxide coating; photoluminescence; C(2)H(5)N catalysts
- Citation
- ELECTRONIC MATERIALS LETTERS, v.4, no.3, pp 131 - 133
- Pages
- 3
- Journal Title
- ELECTRONIC MATERIALS LETTERS
- Volume
- 4
- Number
- 3
- Start Page
- 131
- End Page
- 133
- ISSN
- 1738-8090
2093-6788
- Abstract
- An investigation is reported on the growth of SiO(2) nano-film on BaMgAl(10)O(17):Eu(+) blue phosphors using atomic layer deposition. Silicon oxide films were prepared at room temperature using Si(OC(2)H(5))(4), C(2)H(5)N and H(2)O as precursor, catalyst and reactant gas, respectively. XPS analysis showed the surface composition of coated phosphor powder was silicon oxide. In TEM and FESEM analysis, the growth rate was about 0.66 angstrom/cycle and the surface morphology became smoother than that of uncoated powder. The photoluminescence intensity for coated phosphors was 0.6 similar to 11.3% higher than that of uncoated.
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