近日，宁波东方理工大学黄子劲团队报道了采用弹性微相工程发射极和双嵌套电极制成具有高亮度和可拉伸性的固有可拉伸有机发光二极管。相关论文于2026年3月25日发表在《光：科学与应用》杂志上。

本征可拉伸有机发光二极管（is-OLEDs）完全由本征可拉伸功能层构成，因其在人体动态运动中具备抗拉伸和形变耐受能力，成为可穿戴电子领域极具前景的核心技术。然而，由于共轭发光材料的延展性有限且可拉伸透明电极（STEs）质量不足，实现高性能与高拉伸性仍面临挑战。

研究组针对is-OLEDs，探索了一种弹性微相工程发光层策略。他们系统研究了将不同苯乙烯-丁二烯-苯乙烯嵌段共聚物衍生物弹性体掺入绿色聚芴发光聚合物中的影响，发现弹性体与发光聚合物的相容性是调控共混物三维微相分离的关键，从而同时影响机械性能与光电性能。

此外，通过预埋导电聚合物PH1000，研究组制备了经平滑化处理的双重嵌入式杂化电极PH1000@AgNWs@TPU（PAT）可拉伸透明电极，该电极兼具优异的导电性、拉伸性和稳定性。最终，所制备的is-OLED实现了33,443 cd m^-2的创纪录亮度与高达120%的拉伸性，且在15%应变下经历100次动态拉伸循环后仍保持约90%的初始亮度，这标志着在充分发挥is-OLEDs在下一代可穿戴电子应用潜力方面迈出了重要一步。

附：英文原文

Title: Intrinsically stretchable organic light-emitting-diode with high brightness and stretchability via elastic-microphase-engineered emitter and dual-embedded electrode

Author: Lu, Zhen, Huang, Jiaming, Liang, Qiong, Liu, Kuan, Li, Dongyang, Zhu, Jiayuan, Yan, Cenqi, Zhang, Yaokang, Liu, Heng, Lu, Xinhui, Tian, Jianjun, Wong, Zi Jing, Li, Gang

Issue&Volume: 2026-03-25

Abstract: Intrinsically stretchable organic light-emitting diodes (is-OLEDs), composed entirely of inherently stretchable functional layers, represent a promising enabling technology for wearable electronics due to stretching and deformation endurance during the dynamic movements of the human body. However, achieving high performance and stretchability is challenging due to limited ductility in conjugated emissive materials and the low quality of stretchable transparent electrodes (STEs). In this study, we explore an elastic-microphase-engineered emissive layer strategy for is-OLEDs. This involves investigating the effects of incorporating different styrene-butadiene-styrene block copolymer derivative elastomers into a green polyfluorene emissive polymer. The miscibility between elastomers and emissive polymers is found to be critical in regulating three-dimensional microphase separation in the blend, thus simultaneously affecting mechanical and optoelectronic properties. In addition, by pre-burying conductive polymer PH1000, the smoothed dual-embedded hybrid electrode PH1000@AgNWs@TPU (PAT) STE with superior conductivity, stretchability, and stability is achieved. As a result, the obtained is-OLED demonstrated a record luminance of 33,443cdm2 and stretchability up to 120%, while also maintaining approximately 90% of its initial luminance after 100 cycles of dynamic stretching at 15% strain, representing a significant stride towards realizing the full potential of is-OLEDs for next-generation wearable electronic applications.

DOI: 10.1038/s41377-026-02271-z

Source: https://www.nature.com/articles/s41377-026-02271-z