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Detail publikace
GRMELA, L. TOMÁNEK, P.
Originální název
Near-field investigation of ZnS:Mn nanocrystal phosphors in thin-film electroluminescent device
Typ
abstrakt
Jazyk
angličtina
Originální abstrakt
. A study of the luminescence characteristics of nanostructured ZnS:Mn ACTFEL devices is presented. Nanocrystal ZnS:Mn phosphor has been prepared by sol method using inorganic materials at room temperature. The nanocrystal of ZnS:Mn has cubic crystal structure with average 3 nm of particle size, emitting bright orange light at peak wavelength 585-595 nm with the full width of half maximum 90 nm under UV 337 nm excitation, and the brightness as high as the corresponding bulk pure cubic ZnS:Mn phosphor. In comparison with the bulk ZnS:Mn phosphor these nanocrystals have clearly high luminescent efficiency with its luminescent decay time at least 5 orders of magnitude faster. It means that the oscillator intensity of luminescent centers in ZnS:Mn nanocrystal enhances at least 5 orders of magnitude than that in corresponding bulk ZnS:Mn. The local measurement of this luminescent efficiency by Scanning near-field optical microscope allows discover a hot luminescence in these nanocrystals.
Klíčová slova
nanocrystal phosphors, ZnS:Mn, hot luminescence, ACTFEL, Scanning near-field optical microscopy
Autoři
GRMELA, L.; TOMÁNEK, P.
Vydáno
13. 11. 2006
Nakladatel
Vutium Brno
Místo
Brno
Strany od
84
Strany do
Strany počet
1
BibTex
@misc{BUT60407, author="Lubomír {Grmela} and Pavel {Tománek}", title="Near-field investigation of ZnS:Mn nanocrystal phosphors in thin-film electroluminescent device", year="2006", pages="84--84", publisher="Vutium Brno", address="Brno", note="abstract" }