M{sub 2}Y{sub 8}(SiO{sub 4}){sub 6}O{sub 2}: Tb{sup 3+} (M = Ca, Sr) phosphors: Sol-gel synthesis from N-2-aminoethylic-3-aminopropyldiethoxysilane and different photoluminescence behavior
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092 (China)
M{sub 2}Y{sub 8}(SiO{sub 4}){sub 6}O{sub 2}: Tb{sup 3+} (M = Ca, Sr) phosphors have been synthesized with a new silicon source silane crosslinking reagent (N-2-aminoethylic-3-aminopropyldiethoxysilane [NH{sub 2}(CH{sub 2}){sub 2}NH(CH{sub 2}){sub 3}SiCH{sub 3}(OCH{sub 3}){sub 2}], abbreviated as AEAPMMS) through the sol-gel process, both of which present the characteristic emission {sup 5}D{sub 4} {yields} {sup 7}F{sub J} (J = 6, 5, 4, 3) of Tb{sup 3+} ions. It is interesting to be found that the high energy level blue emission ({sup 5}D{sub 3} {yields} {sup 7}F{sub J} (J = 6, 5, 4, 3) transition) still can be found in the emission spectrum of Ca{sub 2}Y{sub 8}(SiO{sub 4}){sub 6}O{sub 2}: Tb{sup 3+} while it disappears in the emission spectrum of Sr{sub 2}Y{sub 8}(SiO{sub 4}){sub 6}O{sub 2}: Tb{sup 3+} for the cross-relaxation-induced quenching.
- OSTI ID:
- 22202871
- Journal Information:
- Materials Research Bulletin, Vol. 45, Issue 11; Other Information: Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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