Recently, waterproof lighting and luminescent displays have been achieved in perovskite–polymer composite materials. However, practical large-area display applications are still limited to the strong electrostatic adhesion (EA) and high productivity. To overcome these deficiencies, large-area (~ 600 cm²) homogeneous perovskite–polymer fiber membranes (PPFMs) are synthesized by an electrospinning strategy in this work. Due to the microscopic cladding of the hydrophobic polymer fibers, the electrospun PPFMs exhibit ultrastable underwater luminescence for more than 90 days, and strong EA to diverse materials without pretreatments or additional adhesives. Moreover, by utilizing a proposed programmable laser lithography strategy, designed PPFM patterns are fabricated as the assembly blocks of large-area colorful or tridimensional displays. Interestingly, due to laser thermal ablation effects, the disengaged edges of these blocks are self-stitched with high mechanical stability and operability. This work provides a simple and effective strategy to realize waterproof, self-adhesive, and large-area display applications of perovskite nanomaterials in real world settings.

Graphical Abstract

Large-area perovskite–polymer fiber membranes are synthetized by an electrospinning strategy. Underthe microscopic cladding of hydrophobic polymer fibers, the composite membranes of perovskite nanocrystals fully embedded exhibit ultrastable underwater luminescence for more than 90 days, it also demonstrates excellent flexibility and good self-adhesion to diverse materials. Moreover, designed colorful membrane patterns can be fabricated by a proposed programmable laser lithography strategy, and used as assembly blocks of large-area two-dimensional or tridimensional displays.

中文翻译：

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防水、自粘和大面积发光钙钛矿聚合物纤维膜

最近，钙钛矿-聚合物复合材料已经实现了防水照明和发光显示器。然而，实际的大面积显示应用仍然受限于强静电粘附（EA）和高生产率。为了克服这些不足，大面积（~ 600 cm ²) 在这项工作中，通过静电纺丝策略合成了均质钙钛矿聚合物纤维膜 (PPFM)。由于疏水聚合物纤维的微观包层，电纺 PPFM 表现出超过 90 天的超稳定水下发光，以及对各种材料的强 EA，无需预处理或额外的粘合剂。此外，通过利用所提出的可编程激光光刻策略，设计的 PPFM 图案被制造为大面积彩色或三维显示器的组装块。有趣的是，由于激光热烧蚀效应，这些块的脱离边缘是自缝合的，具有很高的机械稳定性和可操作性。这项工作提供了一种简单有效的策略来实现防水、自粘、

图形概要

通过静电纺丝策略合成大面积钙钛矿-聚合物纤维膜。在疏水性聚合物纤维的微观包覆下，完全嵌入钙钛矿纳米晶体的复合膜表现出超过90天的超稳定水下发光，还表现出优异的柔韧性和对多种材料的良好自粘附性。此外，设计的彩色薄膜图案可以通过所提出的可编程激光光刻策略制造，并用作大面积二维或三维显示器的组装块。