Differentiation of photon generation depended on electrospun configuration in Eu3+/Tb3+ doped polyacrylonitrile nanofibers
作者： Z.M. Yu , L.F. Shen , D.S. Li , E.Y.B. Pun , J. Guo
DOI: 10.1016/J.JALLCOM.2019.02.012
关键词:
摘要: Abstract Tb(acac)3 (TAH) and Eu(TTA)3Phen (ETP) doped polyacrylonitriles (PAN) have been electrospun into heterogeneous hybrid TAH/ETP/PAN core-shell structured [(TAH/PAN)core + (ETP/PAN)shell] wire-shaped flexible nanofibers with diameter of ∼350 nm. Differential photon releasing behaviors reveal the double-color-emitting potential Tb3+/Eu3+ combination systems verify effectiveness coaxial configuration in avoiding cross-relaxation between different rare earth ions. Luminous fluxes exceed 283.5 326.3 μlm under excitation 308 nm UVB-LED pump source, respectively. By adopting configuration, color coordinates are tuned from (0.561, 0.332) to (0.435, 0.366) fibers, which demonstrates that structure is promising extend dimension tuning. Nanofibrosis configurations furnish a desired approach develop multifunctional one-dimensional nanomaterials for displays optoelectronic sensors.
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