Spring 2014 IAB & Research Review
March 5 - 6

Prof. Costas P. Grigoropoulos


Laser-Enabled Materials Processing and Directed Nanomanufacturing

Recent and on-going research at the Laser Thermal Laboratory will be presented. The use of nanomaterials enables a wide variety of device configurations comprising thin films and nanostructures on sensitive, flexible substrates that are not possible with traditional thermal treatment. Laser sintering and annealing have been implemented to significantly improve the transport properties in nanoparticle-based and semiconductor materials. We have applied laser-assisted chemical vapor deposition (LACVD) for the localized, on-demand growth of semiconductor nanomaterials with highly controlled dimensions and properties. A unique apparatus has been built at the Marvell Nanolab for this purpose. New approaches for the heterogeneous integration of vertically aligned carbon nanotubes and graphene on polymer materials have been developed. These concepts have been applied to the fabrication of electronic devices, dye sensitized solar cells (DSSCs), supercapacitors and sensors. We have also applied two-photon polymerization for the fabrication of 3-D nanostructures. Examples of laser-aided fabrication and processing of biomaterials will be given.