Carbon Nanotubes Irradiation effects induced by Pulsed Laser Deposition

Effects of laser irradiation of Carbon nanotubes (CNTs) were investigated. Samples were laser-processed in different source conditions: pulsed laser beam of 248 nm, 532 nm and 1064 nm; pulse energy range from 100 mJ up to 500 mJ and shots number from 50 to 1800. Surface morphological changes and grain size distribution variations induced by the laser treatment were investigated through Scanning Electron Microscopy technique and counting software codes applied on the resulting images. Raman spectroscopy technique was employed for measurements of structural changes induced by the laser beam. Obtained results were compared with literature data about other carbon structures and irradiations conditions.