Positronics and nanotechnologies: Possibilities of studying nanoobjects in materials and nanomaterials by the method of positron-annihilation spectroscopy
Abstract
The method of positron-annihilation spectroscopy is shown to be one of the most efficient methods for determining sizes of nanoobjects (vacancies, vacancy clusters); free volumes of pores, cavities, and hollows; and their concentrations and chemical composition at the point of annihilation in porous systems and some defective materials (and generally in a lot of technologically important materials and nanomaterials). Experimental investigations of nanodefects in porous silicon, silicon, and quartz single crystals irradiated with protons and in quartz powders are briefly reviewed.
- Publication:
-
Physics of Atomic Nuclei
- Pub Date:
- October 2009
- DOI:
- 10.1134/S1063778809100081
- Bibcode:
- 2009PAN....72.1672G
- Keywords:
-
- 71.60.+z;
- 61.46.-w;
- 36.10.Dr;
- 71.60.+z;
- 61.46.-w;
- 36.10.Dr;
- Positron states;
- Nanoscale materials;
- Positronium muonium muonic atoms and molecules