Category: Resources

Capabilities include Atomic resolution, contact mode, tapping mode. Scanning Polarization Force Microscopy has been implemented with this microscope making it valuble for liquid and soft samples.

Carbon nanotubes present exceptional electrical and mechanical properties. The current density up to 1000 times higher than in copper and the highest tensile strength recorded make them appealing for scientific research.

Ultra High Vacuum chamber for Pulsed Laser Deposition. The pressure in the chamber can go to 2*10-10Torr ensuring that the plasma produced by the laser ablation can expand uniformly.

First tests of SWCNT doped polymer solar cells. The photovoltaic cell embeds SWCNTs produced by laser ablation into a photosensitive polymer matrix. The first experiments performed show promising results.

The apparatus combines confocal microscopy and Raman spectroscopy to provide high resolution spectra, mapping the surface of the sample with two wavelengths and several optical magnifications.

The target is rotated to ensure an even ablation of the entire surface.

Ablation targets are prepared by carefully mixing metal or bimetal catalyst powders with a graphite cement. The mixture is placed in a teflon mold and submitted to a temperature treatment.

The ablation products are collected from the cold finger. SWCNTs form a web with the catalyst nanoparticles and amorphous carbon which peals off the collector.

Laser ablation. The high energy of the 25ns laser pulse is focused on the graphite target in a 20mm2 spot. The plasma formed contains the necessary atomic and ionic species to form SWCNTs.