Low-temperature nanowelding silver nanowire hybrid flexible transparent conductive film for green light OLED devices

Flexible organic light emitting diodes (OLED) have attracted great attention in many applications. MXene based flexible transparent conductive films (TCFs) are the most promising next-generation electrodes for flexible electronics. Herein, the sandwich conductive structure of silver nanowires (AgNWs) network, new 2D nanosheets with excellent conductivity, hydrophilicity and mechanical flexibility and PEDOT:PSS contributes to a highly transparent and conductive hybrid electrode through a simple, scalable, low-cost spray method. The Ti3C2Tx/AgNWs/PEDOT-PET film shows a low sheet resistance (<30 Ω/sq) and high transmittance (>80%) at 550 nm. Flexible OLED with such hybrid anode has the maximum brightness, current efficiency and current density, as high as 10 040 cd m-2, 3.7 cd A-1and 535.5 mA cm-2, respectively. These results indicate that the novel Ti3C2Tx/AgNWs/PEDOT-PET TCFs have a great potential for high-performance flexible optoelectronic devices.