Dr. Zheng Jian, the first author of the paper, is shown demonstrating the printing of molybdenum disulfide flakes from a solution of the exfoliated flakes. Disclaimer: AAAS and EurekAlert!
"The high-mobility n-type molybdenum disulfide transistors, unlike conventional epitaxially-grown quantum well system, are made by simply stacking several van der Waals materials in sequence ...