Graphene and MoS2 used by Berkeley Lab to make a transistor

Researchers at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a way to assemble transistors based on graphene and molybdenum disulfide.

The method etches narrow channels in conducting graphene laid down on a silicon-dioxide substrate. These channels are then filled with the 2D MoS2. The method allows graphene to inject electrons into the conduction band of the MoS2 channel with improved performance compared with simply using metal contacts to inject electrons, according to the researchers.

Will MoS2 outperform graphene in water desalination membranes?

Researchers from the University of Illinois at Urbana-Champaign have developed a new MoS2-based filter for water desalination that they claim might be cheaper and more effective than the filters used today. This filter reportedly performs better than graphene-based ones tested in the past.

This filter is made of single-layer sheet of molybdenum disulphide (MoS2) with nanopores in them. Graphene membranes are thinner than MoS2 filters, but MoS2 still seems to be more efficient - the slightly thicker filter gives MoS2 more physical strength to withstand pressure, and, unlike graphene filters, they are more easily manufactured. 

Graphene lubricants last much longer than existing lubricants

One promising graphene application is in the lubricants market. Graphene NanoChem for example is commercializing graphene-based lubricants for the oil industry (and already signed a deal to supply 135,000 tons of these materials in the next five years). Now researchers at the U.S. Department of Energy’s Argonne National Laboratory discovered that those graphene-based lubricants last longer than conventional lubricants (made from graphite or molybdenum disulfide).

A single layer of graphene, for example, lasts for over 6,500 "wear cycles". This is a great improvement compared to conventional lubricants that will last for only 1,000 wear cycles - and this will only happen if you use about 1,000 layers of those materials.

UK researchers manage to produce large-area MoS2 thin films

Researchers from the UK's University of Southampton developed a new process to synthesize large-area molybdenum di-sulphide (MoS2), a 2D material similar to graphene in many of its properties. Up until now most MoS2 production results in tiny flakes.

The researchers used atmospheric pressure chemical vapor deposition (APCVD) to fabricate large area (>1000 mm2) ultra- thin films only a few atoms thick. The researchers are collaborating in this research together with several UK companies and universities, MIT and Singapore's Nanyang Technological University.

The National University of Singapore to launch a new 2D Materials Center

The National University of Singapore (NUS) announced it will open a new research center that will focus on 2D materials. The so-called "2D Materials Center" (2MC?) will receive $40 million USD in funding in the next 10 years from the National Research Foundation.

The NUS Graphene Research Center, which opened in 2010, will become a part of the new 2D Materials Center. The 2MC will have about 50 researchers from multiple disciplines. In addition to graphene, two other materials that will be the focus of initial research will be Phosphorene and Molybdenum disulfide (MoS2).