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Molten‐Salt Synthesis and Characterization of Nickel‐Doped Forsterite Nanocrystals
Author(s) -
Sun HongTao,
Fujii Minoru,
Nitta Noriko,
Mizuhata Minoru,
Yasuda Hidehiro,
Deki Shigehito,
Hayashi Shinji
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03026.x
Subject(s) - selected area diffraction , materials science , luminescence , nanocrystal , transmission electron microscopy , forsterite , electron diffraction , nanoparticle , chemical engineering , doping , molten salt , nanotechnology , mineralogy , diffraction , optics , chemistry , optoelectronics , metallurgy , physics , engineering
Nickel‐doped forsterite (Ni 2+ :Mg 2 SiO 4 ) nanocrystals have been synthesized by a facile molten‐salt approach in the presence of NaCl and a surfactant (NP‐7.5). The products were characterized by X‐ray diffraction, transmission electron microscopy (TEM), high‐resolution TEM, selected area electron diffraction (SAED), and luminescence spectra measurements. The crystal size could be controlled by tailoring the synthesis parameters. TEM, high‐resolution TEM, and SAED results revealed the single crystalline character of Mg 2 SiO 4 nanoparticles. A possible model for the growth of Ni 2+ :Mg 2 SiO 4 nanocrystals was postulated. The obtained Ni 2+ :Mg 2 SiO 4 nanocrystals show strong, super broad, near‐infrared luminescence at room temperature. These doped Mg 2 SiO 4 nanocrystals are promising gain mediums for super broadband optical amplification.