Dy3+ and Eu3+ complexes co-doped flexible composite nanofibers to achieve tunable fluorescent color
Color-tunable flexible composite nanofibers containing Dy(BA)3phen and Eu(BA)3phen complexes have been successfully fabricated via a facile electrospinning process. Scanning electron microscopy, energy dispersive spectrometry and fluorescence spectroscopy were used to characterize the samples. The diameter of the composite nanofibers is 420.83 ± 6.55 nm. Tunable color from greenish blue to white to orange can be realized in a single flexible composite nanofiber by varying the mass ratio of Dy(BA)3phen–Eu(BA)3phen, and it is the first time to obtain white-light-emitting flexible nanofibers using rare earth complexes as luminescent centers. In particular, the composite nanofibers can respectively emit cool and warm white light with certain doping contents of Dy(BA)3phen and Eu(BA)3phen. The novel color-tunable composite nanofibers have potential applications in the fields of fluorescent lamps, field emission displays and color displays.
KeywordsRare Earth Phen Benzoic Acid Mass Percentage Fluorescence Lifetime
This work was financially supported by the National Natural Science Foundation of China (NSFC 50972020, 51072026), Specialized Research Fund for the Doctoral Program of Higher Education (20102216110002, 20112216120003), the Science and Technology Development Planning Project of Jilin Province (Grant Nos. 20130101001JC, 20070402, 20060504), the Research Project of Science and Technology of Department of Education of Jilin Province “11th 5-year plan” (Grant No. 2010JYT01), Key Research Project of Science and Technology of Ministry of Education of China (Grant No. 207026).
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