Inkjet Printing of MoS2

A simple and efficient inkjet printing technology is developed for molybdenum disulfide (MoS₂), one of the most attractive two‐dimensional layered materials. The technology effectively addresses critical issues associated with normal MoS₂ liquid dispersions (such as incompatible rheology, low concentration, and solvent toxicity), and hence can directly and reliably write uniform patterns of high‐quality (5–7 nm thick) MoS₂ nanosheets at a resolution of tens of micrometers. The technology efficiency facilitates the integration of printed MoS₂ patterns with other components (such as electrodes), and hence allows fabricating various functional devices, including thin film transistors, photoluminescence patterns, and photodetectors, in a simple, massive and cost‐effective manner while retains the unique properties of MoS₂. The technology has great potential in a variety of applications, such as photonics, optoelectronics, sensors, and energy storage.