Davide Mariotti, Vladimir Švrček, Jeremy W. J. Hamilton, Michael Schmidt and Michio Kondo Silicon Nanocrystals in Liquid Media: Optical Properties and Surface Stabilization by Microplasma-Induced Non-Equilibrium Liquid Chemistry Advanced Functional Materials 22
Surface engineering of silicon nanocrystals directly in water or ethanol by an atmospheric-pressure dc microplasma is reported. Microplasma processing stabilizes the optoelectronic properties of silicon nanocrystals that remain stable after several days of storage. The microplasma treatment in ethanol drastically enhances the silicon nanocrystals' photoluminescence intensity and causes a red-shift of the photoluminescence maximum.
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