Low Driving Voltage Electroluminescence Device for Integrated Visual Strain Sensing

• DOI: 10.1021/acsami.4c06993
• Publication Date: 2024-06-05T18:47:10Z
• Authors: Simu Zhu; Feng Xiong; Yifan Gu; Weichun Chen; Qitian Fan; Hao Lu; Ting Wang; Bo-Ru Yang; Shaozhi Deng
• Keywords: Flexible display; Electroluminescent display

As a pivotal component in human–machine interactions, display devices have undergone rapid development modern life. Displays such as alternative current electroluminescence|alternative electroluminescent (ACEL) with high flexibility and long operational lifetimes are essential for wearable electronics. However, ACEL constrained by their inherent driving voltage complex fabrication processes. Our work presents an easy blade-coating method fabricating flexible based on all-solution process. By dispersing BaTiO3 ZnS/Cu powder into waterborne polyurethane, we successfully combined dielectric fluorescence functionalities within single layer, significantly reducing the device's voltage. Additionally, ionic conducting hydrogel was chosen transparent electrode to achieve good electrical contact strong interfacial adhesion through situ polymerization. Owing unique method, our device exhibits flexibility, low (20–100 V), brightness (300+ cd/m2 at 60 environmental friendliness. Furthermore, repurposing electrode, integrated strain visualization capabilities device, highlighting its potential applications healthcare monitoring.