Journal
AEROSOL SCIENCE AND TECHNOLOGY
Volume 49, Issue 10, Pages 886-894Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/02786826.2015.1080812
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Funding
- European Union's Seventh Framework Program (EU FP7) [280765]
- NanoNextNL, a micro and nanotechnology consortium of the Government of the Netherlands
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A new method for generating metal clusters in the gas phase is described and characterized in this work. The method is based on material evaporation by spark ablation at atmospheric pressure. The characterization of atomic clusters was done by measuring their electrical mobility. The measured mobilities were compared with values found in literature in order to identify the cluster species. We show that silver clusters consisting from one up to 25 atoms can be produced in helium at atmospheric pressure. In addition, the effect of oxygen concentration on the resulting cluster mobility distribution was investigated. Results show that at higher oxygen level, the mobility distribution is dominated by the abundance of stable clusters (i.e., magic number clusters). This can be attributed to an oxidation etching effect. Copyright American Association for Aerosol Research
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