Comparison of Clusters Produced from SbSe Homemade Polycrystalline Material, Thin Films, and Commercial Polycrystalline Bulk Using Laser Desorption Ionization with Time of Flight Quadrupole Ion Trap Mass Spectrometry
Résumé
This study compared SbSe material in the form of commercial polycrystalline bulk, sputtered thin film, and homemade polycrystalline material using laser desorption ionization (LDI) time of flight mass spectrometry with quadrupole ion trap mass spectrometry. It also analyzed the stoichiometry of the SbSe clusters formed. The results showed that homemade SbSe bulk was more stable compared to thin film; its mass spectra showed the expected cluster formation. The use of materials for surface-assisted LDI (SALDI), i.e., graphene, graphene oxide, and C, significantly increased the mass spectra intensity. In total, 19 SbSe clusters were observed. Six novel, high-mass clusters-SbSe, SbSe, and SbSe-were observed for the first time when using paraffin as a protective agent.