Optics and Photonics Society of Iran

Abstract- In the present investigation two groups of nanodiamond particles have been selected for back-scattering Raman spectroscopy and FTIR spectroscopy and optical UV-Vis absorption characterization. The absorbance has been done by means of nanodiamond suspended in methanol. The nanodiamond powders have been used for back-scattering Raman and FTIR spectroscopy analysis. The absorbance of NDM1 group is so greater than the NDM2 group at the same concentration. However, all of these two groups have the nanoparticles absorbance features such as absorbance peaks around 250 nm and 213 nm, respectively. Also the back-scattering Raman spectra of these two groups of nanodiamond powders have similar features and both of them have the graphitic carbons. Back-scattering Raman spectra show the diamond peak (D), disordered graphitic band (D) and graphitic band (G) besides some other features. FTIR spectrum show the similarity between two groups but the water amount in the ND1 is greater than ND2.