Highly Stable, Transparent, and Conductive Electrode of Solution-Processed Silver Nanowire-Mxene for Flexible Alternating-Current Electroluminescent Devices

While recent trends in flexible optoelectronic devices have led to a proliferation of studying transparent conductive electrodes (TCEs), maintaining the balance of high transmittance and high conductivity of TCEs remains a challenge. Herein, the collaboration of a silver nanowire (AgNW) network and new 2D Mxene nanosheets with excellent conductivity, hydrophilicity, and mechanical flexibility contributes to a highly transparent and conductive hybrid electrode through a simple, scalable, low-cost, solution-processing method. This AgNW-Mxene electrode shows a low sheet resistance of 15.9 Ω sq.–1 at an ultrahigh transmittance of 92.5% and remarkable mechanical durability and chemical stability. As a proof of concept, the AgNW-Mxene electrode is used in flexible alternating-current electroluminescent device, showing outstanding flexibility and stable illumination, which can maintain a constant illumination even under bending at 180°. This promising high-performance electrode will definitely provide a brand-new pathway for the development of flexible optoelectronic devices.