Stretchable Fabric Organic Light-Emitting Diodes Based on Transferable Laser Pattern for Wearable Photodiagnostic Applications

IF 17.2 1区工程技术 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Fiber Materials Pub Date : 2025-03-28 DOI:10.1007/s42765-025-00532-x

Ye Ji Shin, Jeong Hyun Kwon, Tae-Yun Lee, Jung-Hoon Noh, Sang Jik Kwon, Eou-Sik Cho, Yongmin Jeon

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Abstract

Stretchable organic light-emitting diodes (OLEDs) are emerging as a key technology for next-generation wearable devices due to their uniform light emission, stable performance under stretching conditions, and various flexible substrates. This paper introduces stretchable OLEDs fabricated with laser-cut kirigami patterns and a multifunctional encapsulation multilayer (MEM) barrier. These OLEDs were subsequently transferred onto textiles. These stretchable OLEDs achieved a remarkable stretchability of up to 150% through optimized kirigami pattern and maintained 100% stretchability when integrated with textiles, preserving the flexibility of a textile substrate. Additionally, the MEM barrier provided ultraviolet (UV) reflection and waterproof properties, ensuring reliable performance in harsh environments. Stretchable OLEDs and stretchable fabric OLEDs demonstrated a high luminance of 18,983 cd/m² and 10,205 cd/m², with minimal emission variation under stretched conditions. Furthermore, the potential of stretchable fabric OLEDs for wearable healthcare applications was evaluated by measuring photoplethysmography (PPG) signals. Stable PPG signals were successfully obtained at a 20% stretched state. Adjusting light source intensity effectively compensated for signal quality degradation caused by stretching. These findings highlight the significant potential of stretchable fabric OLEDs for wearable devices and photodiagnostic platforms, offering broad applicability across diverse fields.

Graphical Abstract

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可穿戴式光诊断应用中基于可转移激光模式的可拉伸织物有机发光二极管

可拉伸有机发光二极管（oled）由于其均匀的发光、在拉伸条件下的稳定性能和各种柔性衬底而成为下一代可穿戴设备的关键技术。本文介绍了用激光切割基利伽米图案和多功能封装多层（MEM）阻挡层制备的可拉伸oled。这些有机发光二极管随后被转移到纺织品上。这些可拉伸的oled通过优化的基里米图案实现了高达150%的显着拉伸性，并在与纺织品集成时保持100%的拉伸性，保持了纺织品基材的柔韧性。此外，MEM屏障提供紫外线反射和防水性能，确保在恶劣环境下的可靠性能。可拉伸oled和可拉伸织物oled的亮度分别为18,983 cd/m2和10,205 cd/m2，在拉伸条件下发光变化最小。此外，通过测量光电体积脉搏波（PPG）信号，评估了可拉伸织物oled在可穿戴医疗保健应用中的潜力。在20%拉伸状态下成功获得了稳定的PPG信号。调节光源强度可有效补偿因拉伸引起的信号质量下降。这些发现突出了可拉伸织物oled在可穿戴设备和光诊断平台上的巨大潜力，在不同领域具有广泛的适用性。图形抽象

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来源期刊

Advanced Fiber Materials Multiple-

CiteScore

18.70

自引率

11.20%

发文量

109

期刊介绍： Advanced Fiber Materials is a hybrid, peer-reviewed, international and interdisciplinary research journal which aims to publish the most important papers in fibers and fiber-related devices as well as their applications.Indexed by SCIE, EI, Scopus et al. Publishing on fiber or fiber-related materials, technology, engineering and application.