Photoluminescence studies on lithium-calcium borophosphate glasses doped with transition metal ions

• Main Authors: Wong, Poh Sum (Author), Wan, Ming Hua (Author), Eeu, Tien Yew (Author), Hussin, Rosli (Author), Ibrahim, Zuhairi (Author)
• Format: Article
• Language: English
• Published: Penerbit UTM Press, 2012.
• Subjects: Q Science
• Online Access: Get fulltext

The mixed alkali borophosphate 25Li2CO3:25Ca2O3:30B2O3:20P2O5 glasses doped with 1 mol% of different transition metal ions were prepared and studied using photoluminescence techniques. The transition metal ions used included chromium, manganese and iron. Chromium doped glass exhibits a violet emission band at ̴ 316 nm and this band has been assigned to the transition of z6Dᵒ1/2 → a4P5/2. While manganese doped glass show a violet emission band at ̴ 408 nm which is assigned to z7Pᵒ4 → a5D4 and a red emission band at ̴ 632 nm which is assigned to the transition of z5Pᵒ3 → a5G6. Lastly, for the iron doped glass shows many emission bands along the visible range.