Red phosphorescence properties of Mn ions in MgO–GeO2 compounds
Source abstract
Abstract
Red phosphorescence properties on Mn ions doped MgO–GeO2 compounds, Mg4GeO6,Mg2GeO4, and MgGeO3, were investigated. The red phosphorescence was observed in MgGeO3:Mn2+. The red phosphorescence intensity of MgGeO3:Mn2+ increased withadding the MgF2 and Yb2O3. The red phosphorescence duration time of sample with a batch composition of 44 mol%-MgO, 6 mol%-MgF2, 50 mol%-GeO2, 0.1 mol%-MnO, and 0.05 mol%-Yb2O3 is approximately 30 min. The mechanism of red phosphorescence in MgGeO3:Mn2+ is discussed in terms of the relationship between valency state of manganese ions and point defects in matrix compound.© 2003 Elsevier Science Ltd. All rights reserved.
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Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Electronic and Structural Properties of Oxides · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Applied Science for Electronics and Materials, Interdisciplinary Graduate School of Engineering SciencesKyushu University,,6-1 KasugakouenKasuga-shi, Fukuoka 816-8580Japan
Fukuoka Industry, Science and Technology Foundation,1-1-1 TenjinFukuoka 810-0001Japan
Department of Engineering Sciences for Electronics and Materials, Interdisciplinary Graduate School of Engineering SciencesKyushu University,6-1 Kasugakouen, Kasuga-shi,Fukuoka 816-8580Japan
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