Solution-based Synthesis of 2D Layered Materials for Flexible and Printed Electronics Applications

A.B. Kaul
University of Texas at El Paso,
United States

Keywords: 2D layered materials, MoS2, graphene, optoelectronics, excitons

Summary:

Two-dimensional (2D) layered materials (LMs) such as molybdenum disulfide (MoS2), tungsten disulfide (WS2 and black phosphorus are very promising candidates for electronics and opto-electronics applications given their interesting properties. The layered structure of these materials makes them amenable to mechanical exfoliation to form isolated 2D atomic crystals. However, for scalability and to enable a wider suite of applications, liquid phase exfoliation in appropriate solvents is also be a promising technique to enable novel devices from these materials. In this talk, we present results on the liquid phase exfoliation of 2DLMs in organic solvents, and report on the optical and electronic characterization results on these solution dispersions, which can then be ink jet printed using a commercially available material printer on flexible and transparent substrates for printed electronics applications.