Formation of manganese nanoclusters in a sputtering/aggregation source and the roles of individual operating parameters

Malak Khojasteh; Vitaly V. Kresin

doi:10.1117/12.2230637

21 December 2016 Formation of manganese nanoclusters in a sputtering/aggregation source and the roles of individual operating parameters

Malak Khojasteh, Vitaly V. Kresin

Author Affiliations +

Proceedings Volume 10174, International Symposium on Clusters and Nanomaterials; 1017407 (2016) https://doi.org/10.1117/12.2230637
Event: International Symposium on Clusters and Nanomaterials, 2015, Richmond, Virginia, United States

Abstract

We describe the production of size selected manganese nanoclusters using a dc magnetron sputtering/aggregation source. Since nanoparticle production is sensitive to a range of overlapping operating parameters (in particular, the sputtering discharge power, the inert gas flow rates, and the aggregation length) we focus on a detailed map of the influence of each parameter on the average nanocluster size. In this way it is possible to identify the main contribution of each parameter to the physical processes taking place within the source. The discharge power and argon flow supply the atomic vapor, and argon also plays the crucial role in the formation of condensation nuclei via three-body collisions. However, neither the argon flow nor the discharge power have a strong effect on the average nanocluster size in the exiting beam. Here the defining role is played by the source residence time, which is governed by the helium supply and the aggregation path length. The size of mass selected nanoclusters was verified by atomic force microscopy of deposited particles.

Citation Download Citation

Malak Khojasteh and Vitaly V. Kresin "Formation of manganese nanoclusters in a sputtering/aggregation source and the roles of individual operating parameters", Proc. SPIE 10174, International Symposium on Clusters and Nanomaterials, 1017407 (21 December 2016); https://doi.org/10.1117/12.2230637

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