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

作者：Grafutin V I^*; Prokop'ev E P; Timoshenkov S P; Funtikov Yu V

来源：Journal of Surface Investigation-X-Ray Synchrotron and Neutron Techniques, 2009, 3(6): 917-925.

DOI：10.1134/S1027451009060123

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.

• 出版日期2009-12