Abstract In this study, a white-light-emitting porous fibrous membrane was fabricated by a coaxial electrospinning method, which used a blue fluorescent organic dye as the energy-donor and a specifically designed orange fluorescent dye as the energy-acceptor. The advantage of the coaxial structure is that the spatial separation of the two dyes can be easily accomplished, which can effectively impede the energy transfer (ET) of the two dyes and result in the emission of uniform white light by every microscopically sized individual fiber. In particular, polylactide (PLA) was used as the electrospun matrix due to its satisfactory pore-forming performance under humid conditions, and the porous structure reduced the blocking effect of the polymer matrix on the fluorescent dyes and efficiently realized white-light emission. The white-light-emitting porous fibrous membrane has a unique structure, which gives it special properties such as flexibility and durability. There is great potential for this membrane to be used for next-generation lighting or display applications because of its superior performance.

中文翻译：

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柔性均匀发白光多孔纤维膜的同轴静电纺丝

摘要 本研究以蓝色荧光有机染料为能量供体，专门设计的橙色荧光染料为能量受体，采用同轴静电纺丝法制备了白色发光多孔纤维膜。同轴结构的优点是可以很容易地实现两种染料的空间分离，可以有效地阻止两种染料的能量转移（ET），使每根微观尺寸的单根纤维发出均匀的白光。特别是聚乳酸（PLA）由于其在潮湿条件下具有令人满意的成孔性能而被用作电纺基质，多孔结构降低了聚合物基质对荧光染料的阻挡作用，并有效地实现了白光发射。发白光的多孔纤维膜具有独特的结构，使其具有柔韧性和耐用性等特殊性能。由于其卓越的性能，这种膜具有用于下一代照明或显示应用的巨大潜力。