초록 |
MXenes (Ti3C2TX) are two-dimensional transition-metal carbides with high conductivity and optical transparency. Here, we fabricated MXene electrodes with high environmental stability by laminating a thin polymer film onto MXene layer to protect MXene film from harsh environmental conditions, and developed transparent and flexible MXene electronic devices. A thin polymer layer spin-coated onto a transparent MXene electrode provides environmental stability even under air exposure longer than 7 d at high temperatures (up to 70 °C) and humidity levels (up to 50%) without degrading the transparency. The resulting polymer-laminated MXene electrode facilitates the development of a variety of field-driven devices with high excellent operation reliability, including an electroluminescent displays, capacitive-type pressure sensors, triboelectric nanogenerators, by exploiting the electric field exerted between the MXene layer and the counter electrode through the insulating polymer. |