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Supercritical Fluid Synthesis of Metal and Semiconductor Nanomaterials

In the near future physical and economic constraints are expected to limit the continued miniaturisation of electronic and optical devices using current top-down lithography-based methods. Consequently, nonlithographic methods for synthesising and organising materials on the nanometre scale are required. In response to these technological needs a number of research groups are developing new supercritical fluids methodologies to synthesise and self-assemble building blocks of nanomaterials, from the bottom-up, into structurally complex device architectures. This concept paper highlights some of the recent advances in the synthesis of metal and semiconductor nanoparticles and nanowires by using supercritical fluids. In addition, we describe an efficient supercritical fluid approach for constructing ordered arrays of metal and semiconductor nanowires within mesoporous silica templates.

supercritical fluid

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