SELF-TRAPPED EXCITON LUMINESCENCE INDUCED BY PHOTOEXCITATION OF THE IMPURITY IONS IN ALKALI-HALIDES

Authors
DANILOV VP MURINA TM PROKHOROV AM KAMPHAUSEN R SCHMID D SCHWAN LO
Citation
Vp. Danilov et al., SELF-TRAPPED EXCITON LUMINESCENCE INDUCED BY PHOTOEXCITATION OF THE IMPURITY IONS IN ALKALI-HALIDES, Solid state communications, 94(6), 1995, pp. 477-480
Citations number
11
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
94
Issue
6
Year of publication
1995
Pages
477 - 480
Database
ISI
SICI code
0038-1098(1995)94:6<477:SELIBP>2.0.ZU;2-I
Abstract
Highly UV excited KI:In+ and KI:Sn2+ crystals exhibit at low temperatu res pronounced emission bands peaking near 3.3 eV along with the activ ator luminescence. The spectra and the lifetimes of the 3.3 eV emissio n are close to the well-known radiative characteristics of the triplet self-trapped excitons in pure crystals of KI. The observation of exci ton luminescence in doped crystals of KI confirms that excitons are in volved in the process of F-center formation caused by intense optical excitation of the impurities in alkali halides.