Optical Properties of ZnS:Mn2+ Yellow Nanophosphor Prepared by Spray Pyrolysis

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Spray pyrolysis was used to prepare ZnS:Mn2+ yellow nanophosphor. As an increase in firing temperature for spray pyrolysis, more nanoparticles of a hexagonal phase were formed together with these of the cubic structure. The optimized emission intensity was observed when the nanophosphor was fired at 900 oC after using a spraying solution of 3.5 pH. The particle size ranged from 60 nm to 400 nm. The ZnS:Mn2+ nanophosphor showed a redshift of about 10 nm in the emission spectrum compared to the microphosphor synthesized by solid-state reaction. The temperature-dependence photoluminescence showed different spectroscopic behaviour and displayed a longer decay time than the microphosphor.

Info:

Periodical:

Solid State Phenomena (Volume 128)

Main Theme:

Edited by:

Witold Łojkowski and John R. Blizzard, Urszula Narkiewicz and Janusz D. Fidelus

Pages:

179-184

DOI:

10.4028/www.scientific.net/SSP.128.179

Citation:

S. H. Lee et al., "Optical Properties of ZnS:Mn2+ Yellow Nanophosphor Prepared by Spray Pyrolysis", Solid State Phenomena, Vol. 128, pp. 179-184, 2007

Online since:

October 2007

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$35.00

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