The KPb2Cl5 single crystals, doped by different Rare Earth ions were grown.
The RE segregation coefficient was found to decrease from 1.0 to 0.15 in t
he set from Nd to Yb. Spectroscopic properties and luminescence decay were
studied, stimulated emission was demonstrated at 1.06 mum (Nd3+) and at 2.4
3 mum (Dy3+). (C) 2001 Elsevier Science B.V. All rights reserved.