Fabrication of Ti 3 C 2 T x MXene Transparent Thin Films with Tunable Optoelectronic Properties

MXenes, a new class of 2D transition metal carbides and carbonitrides, show great promise in supercapacitors, Li‐ion batteries, fuel cells, and sensor applications. A unique combination of their metallic conductivity, hydrophilic surface, and excellent mechanical properties renders them attractive for transparent conductive electrode application. Here, a simple, scalable method is proposed to fabricate transparent conductive thin films using delaminated Ti 3 C 2 MXene flakes by spray coating. Homogenous films, 5–70 nm thick, are produced at ambient conditions over a large area as shown by scanning electron microscopy and atomic force microscopy. The sheet resistances ( R s ) range from 0.5 to 8 kΩ sq −1 at 40%…

• NS
  National Science Foundation

  Award: DMR‐1310245