Abstract
The flexible color-tunable [Eu(BA)3phen + Tb(BA)3phen]/PMMA composite nanobelts have been fabricated by single axial electrospinning. Scanning electron microscopy (SEM), energy dispersive spectrometry (EDS) and fluorescence spectroscopy were used to characterize the final products. As-prepared nanobelts are almost uniform and the thickness and width of them are respectively ca. 890 nm and 16.6 ± 0.09 μm. The fluorescence intensity of Eu3+ is increased with adding more Eu(BA)3phen into the composite nanobelts, and the fluorescence intensity of Tb3+ is found to increase monotonically with introducing more Tb(BA)3phen into the composite nanobelts. By adjusting the ratio of Eu(BA)3phen to Tb(BA)3phen complexes, the fluorescence color of composite nanobelts can be tuned from red to yellow, yellow green, and green under the excitation of 290-nm single-wavelength ultraviolet light. Besides, the emission color could also be tuned easily from red to yellow, yellow to green via variation of excitation wavelengths. The novel color-tunable composite nanobelts have potential applications in the fields of color displays and sensor systems.
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Acknowledgments
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).
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Tian, J., Ma, Q., Dong, X. et al. Flexible composite nanobelts: facile electrospinning construction, structure and color-tunable photoluminescence. J Mater Sci: Mater Electron 26, 8413–8420 (2015). https://doi.org/10.1007/s10854-015-3509-y
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DOI: https://doi.org/10.1007/s10854-015-3509-y