Electroluminescent (EL) devices are of great significance for expanding the application range of optoelectronics. However, the realization of EL devices with environment-tolerance, stretchability, mechanical cycling stability, self-adhesion, biocompatibility, and high dielectric constant still remains a challenge. Herein, a type of EL device with enhanced comprehensive performances composing of a chlorinated barium titanate/phosphor/polydimethylsiloxane (Cl-BT/phosphor/PDMS) luminescent layer sandwiched between two silver nanowire-cellulose nanocrystal with II crystalline allomorph/Triton X-100 modified polydimethylsiloxane (AgNW-CNC II/TX-PDMS) electrodes fabricated through a full solution-processing strategy is proposed. Environmentally-friendly CNC II with high transmittance acts as an antioxidant, dispersant and film-former for AgNWs. The hydrophilic modification of TX to PDMS imparts the electrodes with self-adhesion, high stretchability, as well as strong interfacial bonding between TX-PDMS and AgNW-CNC II. The electrodes achieve skin-like modulus by adjusting TX content, endowing the EL devices with a high compliance (186 kPa of Young’s modulus). The luminescent layer with Cl-BT exhibits a high dielectric constant (19) and luminance (up to 72 cd m⁻²). The assembled EL device with excellent cyclic stability (luminance retention 85% after 400 cycles), durability (luminance retention >94% after 400 min) and stretchability (88% luminance at 200% strain) can work properly at broad temperatures (−20 ~ 70 °C) and underwater. This biocompatible and self-adhesive EL device demonstrates great potential for implantable biomedical devices and wearable displays under harsh environments.

电致发光（EL）器件对于扩大光电子学的应用范围具有重要意义。然而，实现具有环境耐受性、拉伸性、机械循环稳定性、自粘附性、生物相容性和高介电常数的EL器件仍然是一个挑战。本文中，一种具有增强综合性能的EL器件，由夹在两个II晶同质异形体/Triton X-100改性的银纳米线-纤维素纳米晶之间的氯化钛酸钡/荧光粉/聚二甲基硅氧烷（Cl-BT/荧光粉/PDMS）发光层组成提出了通过全溶液处理策略制造聚二甲基硅氧烷（AgNW-CNC II/TX-PDMS）电极。环保型CNC II具有高透光率，可作为AgNWs的抗氧化剂、分散剂和成膜剂。 TX 对 PDMS 的亲水改性赋予电极自粘性、高拉伸性以及 TX-PDMS 和 AgNW-CNC II 之间的牢固界面结合。电极通过调整 TX 含量实现类皮肤模量，赋予 EL 器件高顺应性（杨氏模量 186 kPa）。具有Cl-BT的发光层表现出高介电常数（19）和亮度（高达72 cd m ^-2 ）。组装好的EL器件具有优异的循环稳定性（400次循环后亮度保留率为85%）、耐久性（400分钟后亮度保留率为>94%）和拉伸性（200%应变时亮度为88%），可以在宽温度（−20 ~ 70°C）和水下。这种生物相容性和自粘性 EL 器件在恶劣环境下展示了植入式生物医学设备和可穿戴显示器的巨大潜力。