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Nanocrystalline phosphors
Author(s) -
Yang J. P.,
Gray H.,
Hsu D.,
Qadri S. B.,
Rubin G.,
Ratna B. R.,
Warren W. L.,
Seager C. H.
Publication year - 1998
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.1985221
Subject(s) - phosphor , nanocrystalline material , materials science , computer science , optoelectronics , nanotechnology
— We report the first photoluminescent properties of manganese‐doped ZnS nanoparticles prepared in mesoporous cavities of a self‐assembled bicontinuous cubic phase of a surfactant. The average size of the nanocrystals was 2.5 ± 0.5 nm. The photoluminescence was maximum for 0.7 mole% of manganese in the aqueous solution used to make the nanocrystals. The quantum yield at this Mn concentration was greater than 20%, with an orange‐red emission at 592 nm. Electron paramagnetic resonance studies indicate that there is, on the average, less than one isolated Mn ion per nanocrystal.