Monday, January 9, 2012, 10:00 am — Bldg. 735 - Conf Rm B
Colloidal nanoparticles have found important applications in many promising fields, such as energy harvesting/conversion, optics, catalysis, electronics, magnetics, biomedicine, etc. Synthesis of nanoparticles with tailored properties for such applications requires controls including but not limited to size, morphology, and crystalline. In this presentation, I will discuss the syntheses of silver Ag nanoparticles and nanocomposites with controlled sizes and morphologies through engineering of the critical nucleation steps. The exceptional size-dependence of optical properties of the well-synthesized Ag nanoparticles will be discussed to elucidate the importance of the fine controls. I will also discuss the recent effort in using in-situ high-energy synchrotron X-ray diffraction techniques to probe in real time the growth and transformation of nanoparticles during colloidal synthesis. Finally, I will show the versatility and subtlety of some fine colloidal syntheses.
Hosted by: Oleg Gang
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