Methodology and Algorithm of Multicomponent Analysis of Positron Annihilation Spectra for Nanostructured Functional Materials

Authors H.I. Klym1, A.I. Ivanusa2, Yu.M. Kostiv1, D.O. Chalyy2, T.I. Tkachuk1, R.B. Dunets1, I.I. Vasylchyshyn1

1 Lviv Polytechnic National University, 12, Bandera Str., 79013 Lviv, Ukraine

2 Lviv State University of Life Safety, 35, Kleparivska Str., 79000 Lviv, Ukraine

Issue Volume 9, Year 2017, Number 3
Dates Received 19 March 2017; revised manuscript received 12 June 2017; published online 15 June 2017
Citation H.I. Klym, A.I. Ivanusa, Yu.M. Kostiv, et al., J. Nano- Electron. Phys. 9 No 3, 03037 (2017)
DOI 10.21272/jnep.9(3).03037
PACS Number(s) 82.45.Xy, 92.60.Jq
Keywords Positron Annihilation Lifetime Spectra, LT Computer Program, Methodology, Algorithm (7) , Nanostructured Ceramics.
Annotation Methodology for treatment of positron annihilation lifetime spectra by LT computer program in the nanostructured ceramic materials was proposed. Features of mathematical description of annihilation spectra was demonstrated. The algorithm for selection of optimum values of fitting and positron trapping parameters in nanovoids was shown. Annihilation spectra were analyzed for functional temperature-sensitive ceramics using LT program at different amount of components. It is shown that three-component fitting procedure enables to define the radius of nanopores in functional ceramic materials.

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