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

I. M. Bolesta; I. N. Rovetskii; Z. M. Yaremko; I. D. Karbovnyk; S. R. Velgosh; M. V. Partyka; N. V. Gloskovskaya; V. M. Lesivtsiv

doi:10.15407/ujpe60.11.1143

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.

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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

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Issue

Vol. 60 No. 11 (2015)

Section

Nanosystems

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