Determination of radii of nanoobjects in porous systems and some defective materials by positron annihilation spectroscopy

Positron annihilation spectroscopy (PAS) is shown to be one of the effective modern methods to determine sizes of nano-objects (vacancies and vacancy clusters), free volumes of pores, cavities, voids, and their concentrations and chemical compositions in nanomaterials and porous systems. A brief rev...

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Veröffentlicht in:	Surface investigation, x-ray, synchrotron and neutron techniques x-ray, synchrotron and neutron techniques, 2009-12, Vol.3 (6), p.917-925
Hauptverfasser:	Grafutin, V. I., Prokop’ev, E. P., Timoshenkov, S. P., Funtikov, Yu. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry and Materials Science Materials Science Surfaces and Interfaces Thin Films
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Positron annihilation spectroscopy (PAS) is shown to be one of the effective modern methods to determine sizes of nano-objects (vacancies and vacancy clusters), free volumes of pores, cavities, voids, and their concentrations and chemical compositions in nanomaterials and porous systems. A brief review is given of experimental studies on nanodefects in proton irradiated porous silicon, silicon, and quartz single crystals.
ISSN:	1027-4510 1819-7094
DOI:	10.1134/S1027451009060123