研究目的
To compare Sb2Se3 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 and analyze the stoichiometry of the SbmSen clusters formed.
研究成果
LDI with quadrupole ion trap time-of-flight mass spectrometry is a powerful method to study the formation of binary SbmSen clusters. Homemade Sb2Se3 polycrystalline material was more stable and produced the expected cluster formation. The use of SALDI matrices and paraffin significantly increased the mass spectra intensity and allowed the observation of new high-mass clusters.
研究不足
The study focused on the comparison of different forms of Sb2Se3 and the effect of various surfaces on cluster formation. The influence of other potential factors or materials was not explored.
1：Experimental Design and Method Selection:
Laser desorption ionization (LDI) time of flight mass spectrometry with quadrupole ion trap mass spectrometry was used to characterize different Sb2Se3 forms.
2：Sample Selection and Data Sources:
Commercial polycrystalline bulk, sputtered thin film, and homemade polycrystalline material of Sb2Se3 were used.
3：List of Experimental Equipment and Materials:
AXIMA Resonance and AXIMA CFR mass spectrometers, nitrogen laser (337 nm), graphene, graphene oxide, C60, paraffin.
4：Experimental Procedures and Operational Workflow:
Samples were prepared by pulverizing polycrystalline Sb2Se3, suspending in acetonitrile, and depositing on a MALDI target. SALDI using GO, G, and C60 surfaces and Sb2Se3 covered with paraffin were also prepared.
5：Data Analysis Methods:
Launchpad software was used to determine SbmSen cluster stoichiometry via comparison of isotopic envelopes.
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