Luminescence of Pb2+-based aggregates in CsI matrix

Authors
Babin, V Fabeni, P Nikl, M Nitsch, K Pazzi, GP Polak, K Phani, AR Santucci, S Zazubovich, S
Citation
V. Babin et al., Luminescence of Pb2+-based aggregates in CsI matrix, RADIAT EFF, 149(1-4), 1999, pp. 119-123
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
RADIATION EFFECTS AND DEFECTS IN SOLIDS
ISSN journal
10420150 → ACNP
Volume
149
Issue
1-4
Year of publication
1999
Pages
119 - 123
Database
ISI
SICI code
1042-0150(1999)149:1-4<119:LOPAIC>2.0.ZU;2-E
Abstract
Emission bands at 355, 430, 465, 530, 590 and 730 nm are observed in CsI:Pb system, after annealing at 220-370 degrees C for 20 h. Their relative inte nsities depend strongly on annealing temperature. Absorption and excitation spectra of 465-590 nm emissions have maxima near 410 nm, i.e. in the regio n of exciton absorption band of bulk CsPbI3. Thus the creation of CsPbI3-li ke aggregates in CsI matrix is not excluded. The origin of the emission ban ds and creation mechanism of CsPbI3 aggregates are discussed.