Laser Ablation Generation of Antimony Selenide Clusters: Laser Desorption Ionization (LDI) Quadrupole Ion Trap Time of Flight Mass Spectrometry

Abstract

The binary system Sb-Se was studied via laser ablation using antimony-selenium mixtures made from powdered elements in various ratios generating new Sb_mSe_n clusters. The results show that in addition to Sb_m⁺ (m = 1–8) and Se_n⁺ (n = 2–9) clusters, a series of Sb_mSe_n⁺ clusters such as SbSe_1–8⁺, Sb₂Se_1–6⁺, Sb₃Se_1–5⁺, Sb₄Se_1–3⁺, and Sb₅Se_1,2⁺ is generated. In addition, some low intensity oxidized clusters like Se₆O₂⁺, Se₇O₂⁺, and SbSe_2-6O₅⁺ and partially hydroxylated clusters (SbSeO₂H₇⁺, SbSe₅O₄H⁺) are also formed. In total, 24 new antimony selenide clusters were generated. The knowledge gained can contribute to the elucidation of the structure of Sb_mSe_n glasses.

Graphical Abstract

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