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Spontaneous generation of charged atoms or clusters during thermal evaporation of silver

  • In-Deok Jeon , Doh-Yeon Kim and Nong-Moon Hwang EMAIL logo
Published/Copyright: January 22, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 96 Issue 2

Abstract

Spontaneous generation of charged atoms or clusters was investigated during thermal evaporation of silver. For this, the effect of the applied electric bias on the film growth rate was examined during evaporation of silver at 1373 K in a tungsten basket. Film growth rates on three silicon substrates biased + 300, 0 and –300 V with respect to the chamber were 300, 420 and 960 nm per hour, respectively. The number density of generated positively-charged atoms or clusters could be measured by the electric current on the Faraday cup in the chamber. From the temperature dependence of the positive current, the activation energy for charging was determined to be ~ 2.2 eV. This value could be best explained by the surface ionization of clusters of a few atoms on the oxidized tungsten surface.

Keywords: Silver; Thermal evaporation; Charged atoms; Charged clusters; Surface ionization
Prof. Nong-Moon Hwang School Mater. Sci. & Eng, Seoul National University, Shinlim-dong, San 56-1, Kwanak-gu, Seoul 151-744, Korea Tel.: +82 2 880 8922 Fax: +82 2 883 8197

Dedicated to Professor Dr. Duk Yong Yoon on the occasion of his 65th birthday

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Received: 2004-08-25
Accepted: 2004-10-12
Published Online: 2022-01-22

© 2005 Carl Hanser Verlag, München

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https://doi.org/10.3139/ijmr-2005-0032
Keywords for this article
Silver; Thermal evaporation; Charged atoms; Charged clusters; Surface ionization

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Editorial
  4. Articles Basic
  5. Solute drag illustrated graphically
  6. Dopant effect on high-temperature plastic flow behavior and grain boundary chemistry in oxide ceramics
  7. Anomalous behaviour in diffusion impedance of intercalation electrodes
  8. A simple model of fully-faceted grain growth and coarsening with non-linear growth laws
  9. Thermal conductivity of functionally graded Fe–Cu–C alloy processed by liquid phase sintering and carburization
  10. Microstructure development during liquid-phase sintering
  11. The mechanical properties of a joint of Sn-3.5Ag-1Zn solder and Cu substrate with aging treatment
  12. Three-dimensional morphological characterization of coarsened microstructures
  13. Faceting and migration of twin grain boundaries in zinc
  14. Effect of external electric field on the microstructural evolution of La2O3-doped BaTiO3 ceramics
  15. Hardness and fracture toughness of ultra-fine WC-10Co-X cemented carbides prepared from nanocrystalline powders
  16. Systematic study of grain boundary atomistic structures and related properties in cubic zirconia bicrystals
  17. Spontaneous generation of charged atoms or clusters during thermal evaporation of silver
  18. The influence of singular surfaces and morphological changes on coarsening
  19. Electrical activity of grain boundaries in polycrystalline silicon – influences of grain boundary structure, chemistry and temperature
  20. Changes in the distribution of interfaces in PMN-35 mol% PT as a function of time
  21. Study of the effect of heat treatment on a Pt–Co thin film by Monte Carlo simulations coupled with a modified embedded atom method
  22. The influence of misorientation deviation on the faceting of Σ3 grain boundaries in aluminium
  23. Notifications/Mitteilungen
  24. Personal/Personelles
  25. Materials Week
  26. Conferences/ Konferenzen
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