Size-controlled synthesis and optical properties of monodisperse colloidal magnesium oxide nanocrystals
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- Size-controlled synthesis and optical properties of monodisperse colloidal magnesium oxide nanocrystals
- Moon, Hoi Ri; Urban, J.J.; Milliron, D.J.
- Colloids; Luminescence; Metal oxides; Nanocrystals; Synthesis design
- Issue Date
- WILEY-V C H VERLAG GMBH
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.48, no.34, pp.6278 - 6281
- MgO gets discrete: Monodisperse nanocrystals of the alkaline earth metal oxide MgO can be prepared by direct colloidal synthesis (see image). Diameter control (2-8 nm) is achieved by incorporating catalytic amounts of water into the organic reaction medium. Although trioctylphosphine oxide is present during the reaction, the resulting nanocrystals are capped primaryly by benzyl ether. Blue luminescence is observed with a quantum yield up to approximately 20 %.
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