Afterglow of zeolite crystals activated by tin atoms Snº

Abstract

The afterglow spectra of zeolite monocrystals (30 to 40 pm in size) activated by tin atoms SnO are measured at T = 300 and 80 K. Investigations of the afterglow decay kinetics prove that such decay is determined by an intracenter process, the exitation level lifetime being equal to about T z 20 p. The band in afterglow spectrum is identified with the forbidden emission transition aPp: -IDL. in Sno-centres. the possible mechanisms of manifestation of which are diecuesed here.

Synthesis and Characterization of Iron Oxide Nanostructured Particles in Na–Y Zeolite Matrix

“…These guest cations are quite mobile and may usually be exchanged with other cations. 14 The uniform pore size and distribution of zeolites is useful in controlling the formation of semiconductor crystals 15,16 and magnetic systems. 17,18 In our study, we use zeolite-Y that contains Na + guest cations.…”