Enabling efficient electron injection in stretchable OLED

doi:10.1038/s41563-025-02419-z

2025-11-26

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DOI：10.1038/s41563-025-02419-z

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柔性有机发光二极管（OLEDs）正在改变人机界面和可穿戴技术；然而，它们的性能远低于商业化的、非柔性的OLEDs，这主要受限于电子注入效率低下。我们通过重新设计电子传输层和阴极来解决这一问题。对于前者，我们设计了一种具有高柔韧性和理想能级结构的共聚物，其性能可与标准的小分子电子传输层相媲美。对于后者，我们利用液态金属脆化效应赋予铝薄膜柔韧性，同时不损害其电学和光学特性。结合这些设计，我们展示了具有8%的高外部量子效率和3.5 V的极低开启电压的全柔性OLED，其性能与采用相同发光材料的参考刚性OLED相当。这项工作攻克了柔性OLED开发中的关键瓶颈，在器件层面弥合了柔性OLED与标准刚性OLED之间的性能差距，为高性能、类皮肤的显示技术铺平了道路。电子注入不足仍然是限制柔性有机发光二极管性能的主要因素。在此，我们报道了柔性有机发光二极管中电子传输层和阴极的设计方案，以实现高效的电子注入。

Keyword:

Stretchable OLEDs

Electron injection

Electron transport layer

Liquid metals embrittlement

High external quantum efficiency

期刊

Nature Materials

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38.5

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6.8K

被引数:

11.5W

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Argonne National Laboratory

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1.1W

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Yale University

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The University of Chicago

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827

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Lawrence Berkeley National Laboratory

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1.5W

论文数: 1.1W

被引数: 6.1W

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