CEMES CNRS Univ Toulouse – TechConnect Briefs

Structure-Property Correlations in ZnO Tetrapods and Spheres prepared by Chemical Vapour Synthesis

Bacsa R., Bacsa W., Dexpert J., Serp P., Verelst M., CEMES CNRS Univ Toulouse, FR

ZnO is a direct band gap semiconductor that finds applications in varistors and arrestors. Efficient luminescence in the UV of high purity nanocrystalline ZnO nanoparticles (20-50nm) is used in medicine and in the cosmetic industry [...]

Raman study and DFT calculations of amino acids

Bacsa W., Estève A., Faller P., Sonois V., Zwick A., CEMES CNRS Univ Toulouse, FR

Previously we reported intense and narrow vibrational Raman bands of the amino acid histidine grown from droplets of aqueous histidine on silica (Sonois et al., 2007, Chem. Phys. Lett., 439, 360-363). In the present communication [...]

Chemical doping by sulfuric acid in double wall carbon nanotubes

Bacsa W., Dunstan D., Flahaut E., Ghandour A., Puech P., Sapelkin A., CEMES CNRS Univ Toulouse, FR

Charge transfer due to chemical doping in carbon nanotubes [1] can be detected through changes in the band shape and spectral shifts of the Raman G-band. In double wall carbon nanotubes, the inner tube is [...]