Preparation and luminescence properties of the ternary europium complex incorporated into an inorganic/polymer matrix by a sol-gel method

• Published in: Journal of sol-gel science and technology Vol. 15; no. 1; pp. 49 - 55
• Main Authors: FU, L, ZHANG, H, WANG, S, MENG, Q, YANG, K, NI, J
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01-06-1999; Springer Nature B.V
• Subjects: Chemistry; Europium; Exact sciences and technology; Fluorescence; Gels; General and physical chemistry; Luminescence; Optical properties; Photochemistry; Physical chemistry of induced reactions (with radiations, particles and ultrasonics); Polymers; Silicon dioxide; Sol-gel processes; Vinyl butyral polymer; Rare earth metal complex; Hybrid material; Organic ligand; Transition metal Complexes; Diketone; Thiophene derivatives; Sol gel process; Silicon Oxides; Europium complex; Luminescence spectrum; Acetone derivatives; Modified material
• ISSN: 0928-0707; 1573-4846
• DOI: 10.1023/A:1008760930081

Ternary europium complexes with thenoyltrifluoroacetone (TTA) and phenanthroline (phen) were incorporated into SiO2/polymer matrix by a sol-gel method. The gels exhibit the characteristic emission bands of europium ion. In addition, Eu3+ presents a longer fluorescence lifetime in gel than in the corresponding pure complex powder. Concentration effects on the luminescence intensity were investigated. The reasons that are responsible for above results are also discussed in the context.