Electrospun Portable and Adhesive Alternating Current Electroluminescent Devices for Flexible Smart Textiles

Alternating current electroluminescence (ACEL) represents a promising strategy for the development of flexible, low-energy-consuming, smart textiles. However, conventional ACEL devices typically suffer from complex fabrication processes, high manufacturing costs, and rigid structural configurations, which severely limit their reusability, conformability, and large-scale deployment. Herein, a simple and scalable electrospinning strategy is proposed to directly incorporate luminescent powders into a polymer nanofiber network, where the fibers act as a supporting scaffold to immobilize the phosphor particles, enabling the construction of a flexible and uniform electroluminescent layer through a one-step process. This approach significantly simplifies device fabrication while markedly improving material utilization efficiency. Furthermore, an adhesively compatible aluminum foil is employed as the base electrode, endowing the resulting ACEL device with excellent portability and a repeatable adhesion capability. The as-fabricated device can firmly adhere to a wide range of textiles and irregular surfaces, allowing arbitrary attachment and on-demand application. The film formation mechanism of the electrospun luminescent layer is systematically elucidated, and key processing parameters governing structural integrity and luminescent performance are identified. As a result, the device maintains stable and efficient electroluminescence under repeated adhesion and bending cycles. This work provides a practical and energy-efficient route toward environmentally friendly, highly adaptable ACEL devices, offering significant potential for next-generation wearable electronics and smart textile applications.