Morphology and Optical Properties of Nanostructures Formed in Non-Stoichiometric CdI2 Crystals

  • I. M. Bolesta Ivan Franko National University of Lviv, Faculty of Electronics and Computer Technologies, Chair of Radiophysics and Computer Technologies
  • I. N. Rovetskii Ivan Franko National University of Lviv, Faculty of Electronics and Computer Technologies, Chair of Radiophysics and Computer Technologies
  • S. R. Velgosh Ivan Franko National University of Lviv, Faculty of Electronics and Computer Technologies, Chair of Radiophysics and Computer Technologies
  • S. V. Rykhlyuk Ivan Franko National University of Lviv, Faculty of Electronics and Computer Technologies, Chair of Radiophysics and Computer Technologies
  • I. D. Karbovnyk Ivan Franko National University of Lviv, Faculty of Electronics and Computer Technologies, Chair of Radiophysics and Computer Technologies
  • N. V. Gloskovskaya Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine

Abstract

The morphology of nanostructures formed in non-stoichiometric CdI2 crystals has been studied, by using the atomic force microscopy methods. Morphological changes are observed, when the concentration of cadmium atoms approaches a non-stoichiometric threshold value of 0.1 mol%. The features in the phase composition of nanostructures are analyzed with the help of Raman and infrared absorption spectroscopies. The influence of the researched nanostructures on the optical characteristics of non-stoichiometric CdI2 crystals is analyzed.

Keywords atomic force microscopy, nanostructures, surface morphology, Raman spectra, absorption spectra

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Published
2018-09-24
How to Cite
Bolesta, I., Rovetskii, I., Velgosh, S., Rykhlyuk, S., Karbovnyk, I., & Gloskovskaya, N. (2018). Morphology and Optical Properties of Nanostructures Formed in Non-Stoichiometric CdI2 Crystals. Ukrainian Journal Of Physics, 63(9), 816. doi:10.15407/ujpe63.9.816
Section
Semiconductors and dielectrics