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J. LI1, Z. CHEN1, M.Q. Ge1,*
- School of Textile and Clothing, Jiangnan University, Wuxi 214122, P, R. China
The chromatic rare-earth fibers based on long afterglow luminescent material SrAl2O4: Eu2+, Dy3+, which added inorganic pigments of red, yellow, blue and green colors, was prepared by melt-spinning process. The result of X-ray diffraction (XRD) demonstrated that the chromatic luminous fibers had an independent superposition of phase features from both SrAl2O4: Eu2+, Dy3+ and polypropylene. Afterglow decay and excitation-emission spectra were used to analyze the photoluminescence (PL) properties of chromatic rare-earth fibers, and the results indicated that the initial luminescent intensity of white luminous fiber was seen to be more intense. Luminous fibers in white, yellow and green colors were nearly a green emission, which were caused by transition of Eu2+. However, the emission spectrums of red and blue luminous fibers were shown to be red-shifted and blue-shifted, respectively. Furthermore, photo chromic (PC) properties showed that the emitting colors of samples were primarily located in the yellow-green area..
Rare-earth, Chromatic luminous fiber, SrAl2O4: Eu2+, Dy3+, Inorganic pigments, Luminescent properties.
Submitted at: June 11, 2015
Accepted at: April 5, 2016
J. LI, Z. CHEN, M.Q. Ge, Researches on preparation and luminescent properties of chromatic rare-earth fiber based on SrAl2O4: Eu2+, Dy3+, Journal of Optoelectronics and Advanced Materials Vol. 18, Iss. 3-4, pp. 288-293 (2016)
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