[Optical properties of core-shell ZnS :Mn nanoparticles].
Mn(2+)-doped ZnS nanoparticles were prepared in reverse micelles and were coated by a shell of ZnS. The optical properties of the coated Mn(2+)-doped ZnS nanoparticles were studied and compared with those of the uncoated ones. The results indicate that Mn2+ ions emission at 580 nm in the coated nanoparticles was much stronger than that in the uncoated ones. The excitation spectra of the uncoated nanoparticles shifted to the red with the time after the initial preparation, while those of the coated ones changed little, which indicate that the coated nanoparticles had better stability than the uncoated ones.
Cao
Li-xin
LX
Laboratory of Excited State Processes, Chinese Academy of Sciences, Changchun Institute of Optical, Fine Mechanics and Physics, Changchun 130021, China.
Huang
Shi-hua
SH
Ren
Shan-ling
SL
Zhang
Jia-hua
JH
D049449:Luminescence; D008345:Manganese / Q000737:chemistry*; D036103:Nanotechnology; D010316:Particle Size; D013050:Spectrometry, Fluorescence / Q000379:methods; D013455:Sulfur / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
D008345:Manganese; D013455:Sulfur; D015032:Zinc