CATHODOLUMINESSENCE AND PHOTOLUMINESCENCE IN ND-3+ AND TB-3+ ACTIVATED GARNETS OF TYPE CD3-XCAXGA2GE3O12

被引：4

作者：

HIRRLE, R

WIEHL, J

WISCHERT, W

KEMMLERSACK, S

机构：

[1] Institut Für Anorganische Chemie, Universität Tübingen

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1990年 / 120卷 / 02期

关键词：

D O I：

10.1002/pssa.2211200239

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The optical properties of the self‐activated garnet system Cd3−xCaxGa2O12 activated with Nd3+ or Tb3+, respectively, are strongly influenced by the energetic levels of the activator within the band gap. For Nd3+ a weak radiative energy transfer from defect centres of the host to the activator takes place. On the opposite in the Tb3+ system efficient green emitting phosphors are obtained for cathode ray and UV irradiation. The high efficiency is due to a radiationless energy transfer between suitable defect centres and the activator. The luminescence properties are studied as function of the Cd/Ca ratio. Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：643 / 652

页数：10

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