| 초록 |
MXene, a family of two-dimensional (2D) transition metal carbides/carbonitrides, has drawn huge attention due to their unique and interesting physicochemical properties. Exploiting their metallic conductivity, many studies have fabricated transparent conducting MXene films, especially using the highly conductive Ti3C2 MXene. However, previous methods are limited to using only high solution concentrations, acidic environments, and lack tunability. In this work, we fabricated MXene thin film with high transparency, conductivity, and enhanced gas sensing response. Ti3C2 MXene films were self-assembled at the air/water interface derived from Rayleigh–Bénard convection and Marangoni effect, with the assistance of alkali metal cations in a neutral environment. We were able to intercalate various ions between MXene nanosheet, which led to different features for each film. In addition, MXene film showed good gas response and flexibility, which can be further utilized as wearable sensor. |
