On the Mechanism of Nanostructure Growth on the Surface of CdI2 Crystals

Authors

  • I. M. Bolesta Ivan Franko National University of Lviv, Faculty of Electronics, Chair of Radiophysics and Computer Technologies
  • I. N. Rovetskii Ivan Franko National University of Lviv, Faculty of Electronics, Chair of Radiophysics and Computer Technologies
  • Z. M. Yaremko Ivan Franko National University of Lviv, Department of Life Safety
  • I. D. Karbovnyk Ivan Franko National University of Lviv, Faculty of Electronics, Chair of Radiophysics and Computer Technologies
  • S. R. Velgosh Ivan Franko National University of Lviv, Faculty of Electronics, Chair of Radiophysics and Computer Technologies
  • M. V. Partyka Ivan Franko National University of Lviv, Faculty of Physics, Chair of Solid State Physics
  • N. V. Gloskovskaya Bogolyubov Institute for Theoretical Physics, Nat. Acad. of Sci. of Ukraine
  • V. M. Lesivtsiv Ivan Franko National University of Lviv, Faculty of Electronics, Chair of Radiophysics and Computer Technologies

DOI:

https://doi.org/10.15407/ujpe60.11.1143

Keywords:

atomic force microscopy, van der Waals surface, nanopores, nanoclusters, diffusion

Abstract

Atomic force microscopy studies of the dynamics of the nanostructure formation on a van der Waals surface of CdI2 crystals during aging in air environment under near-equilibrium thermodynamic conditions have been carried out. The nanostructure growth process is found to consist of three stages. At the first stage, there appear nano-sized pores due to the lattice dissolution at the outcrops of screw dislocations or other structural defects. At the second stage, the cone-shaped nanoclusters arise and grow in those nano-sized pores. At the third stage, the nanoclusters coagulate. The growth kinetics of cone-shaped nanoclusters is described by a diffusion model based on the interdiffusion approximation for the components. The growth rate of nanoclusters is shown to depend on the time evolution of the concentration gradient of Cd2+ ions in the near-reaction zone.

Published

2019-01-10

How to Cite

Bolesta, I. M., Rovetskii, I. N., Yaremko, Z. M., Karbovnyk, I. D., Velgosh, S. R., Partyka, M. V., Gloskovskaya, N. V., & Lesivtsiv, V. M. (2019). On the Mechanism of Nanostructure Growth on the Surface of CdI2 Crystals. Ukrainian Journal of Physics, 60(11), 1143. https://doi.org/10.15407/ujpe60.11.1143

Issue

Section

Nanosystems

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