"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Positron life time spectroscopy as a method to study of the defect degree materials with disordered structure

J. FILIPECKI1,* , E. GOLIS1, M. REBEN2, K. FILIPECKA3, A. KOCELA1, J. WASYLAK2

Affiliation

  1. Institute of Physics, Jan Dlugosz University, Al. Armii Krajowej 13/15, 42-200 Czestochowa, Poland
  2. AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicz ave. 30, 30-059 Kraków, Poland
  3. Institute of Physics, Faculty of Materials Processing Technology and Applied Physics, Czestochowa University of Technology, Al. Armii Krajowej 19; 42-200 Czestochowa, Poland

Abstract

The paper presents the use of positron lifetime spectroscopy PALS to study the defect degree of structures of disordered materials, research materials were used as samples: the metallic glass, oxide glass, chalcogenide glass and polymer. As a result of the measurements obtained curves describing the dependence of the number of counts of acts of annihilation as a function of time. The distribution of positron lifetime spectra was carried out on three components. The calculated parameters uptake of positron and positronium in structurally disordered materials studied allow to draw conclusions about the degree and nature of defects of studied materials..

Keywords

Positron annihilations, Disordered materials, Free volumes.

Citation

J. FILIPECKI, E. GOLIS, M. REBEN, K. FILIPECKA, A. KOCELA, J. WASYLAK, Positron life time spectroscopy as a method to study of the defect degree materials with disordered structure, Optoelectronics and Advanced Materials - Rapid Communications, 7, 11-12, November-December 2013, pp.1029-1031 (2013).

Submitted at: Dec. 3, 2012

Accepted at: Nov. 7, 2013