Journal
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
Volume 211, Issue 5, Pages 1189-1193Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssa.201330399
Keywords
atomic force microscopy; clusters; nanoparticle growth; pulsed gas aggregation
Funding
- Deutsche Forschungsgemeinschaft (DFG) [SFB/TR 24]
- Czech Grant Agency GACR project [P108/12/1941]
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Growth of Cu nanoparticles in a pulsed gas aggregation cluster source was studied. The cluster growth is enhanced by an energy transport inside the aggregation chamber fed by argon that is delivered in short pulses repeated with low frequency. The effect of pressure, varied during the pulse, on the cluster growth was estimated from time-resolved measurements of mass/size cluster distribution. The cluster mass and the cluster production well correlate with pressure changes. Several stages of cluster growth during the gas-pulse were recognized. Not only larger clusters but also significantly enhanced particle and mass fluxes were observed.
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