To better control the property and device performance of nanomaterials, growth kinetic and mechanistic information of structure changes should be pursued to provide feedback for the development of new �designer� materials to meet the future challenges. Time-resolved in situ experimentation represents a promising means by which the key stages of nanomaterials' crystallization can be unraveled, especially when probed by tunable energy synchrotron radiations. In this presentation, we start with ex situ studies of titanium-based oxide nanomaterials, and then focus on advanced luminescent nanomaterials, since they have practical applications in nearly all devices involving the artificial production of light and are applicable in nanoscaled electronics, photonics, display and advanced bioanalysis. Specifically, we present our recent investigation of in-situ time-resolved synchrotron x-ray diffraction (XRD) and absorption spectroscopy (XAS) analyses on the synthesis of rare-earth doped metal oxide nanostructures, including Er:Y2O3 nanotubes and nanoparticles and Er:La2(ZrxHf1-x)2O7 nanoparticles, by hydrothermal and molten-salt syntheses.

Investigation of growth mechanisms of inorganic oxide nanomaterials

241st National Meeting (2011)

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