面向智能纺织的钙钛矿交流电致发光纤维OA

In response to the urgent demand for electroluminescent devices in smart textiles,this study proposes a novel perovskite-based alternating current electroluminescence(ACEL)fiber solution.Focusing on the characteris-tic that perovskite quantum dots,despite their excellent color purity,cannot directly respond to alternating current,a technical breakthrough is achieved by constructing a CsPbBr3/ZnS/TPU composite system.Wet spinning is used to continuously prepare coaxial fibers,and the Förster energy resonance transfer mechanism between ZnS and CsPbBr3 is utilized to effectively convert alternating current energy into light radiation,with flexible encapsulation achieved through thermoplastic polyurethane(TPU).The obtained fibers exhibit narrow-band pure green emission(CIE coor-dinates 0.213 8,0.642 5)under alternating current fields,maintaining over 82％of their initial brightness after 500 mechanical bends,and possess excellent pattern weaving construction capabilities.This research overcomes the challenge of the coordinated adaptation of the material's photoelectric response mechanism and flexible substrate in wearable optoelectronic devices,providing an industrializable technical path for the development of high-color-do-main flexible light sources and dynamic interactive interfaces in smart textiles.