Keynote
A Novel Approach to the Synthesis of Multicomponent Nanostructures

Development of synthetic methods for preparation of novel nanostructures is one of the most attractive fields in nanoscience and materials chemistry. During the last three decades many approaches and techniques have been reported for formation of plain nanoparticles with different sizes and shapes, and at a later stage controlling the compositions by forming hybrid nanostructures and multicomponent materials.

In this talk, we will describe a new concept for synthesizing elongated heterostructures using two complementary methods: seeded growth and SLS, where the hybrid nanostructures of Au-metal oxide serve as catalysts for the growth of more complex heterostructures of Au-CdS-metal oxide by SLS. Surprisingly, the growth of CdS occurs at the interface between the two domains in which CdS is always grown between the Au and metal oxide domains. This heterostructure (Au-CdS-metal oxide) could not be achieved by SLS or seeded growth due to the difficulty to form metal oxide rods in SLS. Therefore, using these two complementary methods can pave the way to form more complex nanostructures with increased functionality.