科研之友
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摘要
Super-long aligned luminescent Eu(TTA)(3)phen/PS composite fibers (TTA = thenoyltrifluoroacetone, phen = 1,10-phenanthroline, PS = polystyrene) with diameter in the range of 1-10 mu m were prepared via an electrospinning method. The key to the success of alignment of these fibers was the usage of high molecular weight PS in the electrospinning solution and the low speed collecting drum. Luminescent properties of the composite fibers were systemically studied in comparison with that of the corresponding pure europium complex Eu(TTA)(3)phen. The results showed that the fluorescence lifetime for the (5) D (0) state in the composite fibers became shorter compared to that in the pure europium complex and decreases gradually with the concentration of Eu(DBM)(3)phen complex.
