面向智能纺织的钙钛矿交流电致发光纤维

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 CsPbBr 3 /ZnS/TPU composite system.Wet spinning is used to continuously prepare coaxial fibers， and the Förster energy resonance transfer mechanism between ZnS and CsPbBr 3 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.Keywords： perovskite； AC electroluminescence； coaxial wet spinning； energy resonance transfer； weavable patterning 文章编号： 1000-7032(2026)01-0045-11 收稿日期： 2025•10•16； 修订日期： 2025•10•27 基金项目： 胡杨英才-引进人才科研启动金(博士)项目(TDZKBS202655)； 青岛博士后创新项目(QDBSH20220202210)； 兵团财政科 技计划项目 (2022DB011) ； 师市科技攻关计划项目 (2024GX02)