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Thin Molybdenum Disulfide Challenge Graphene

A group of researchers at the Southampton University has developed an alternative material of graphene. In addition, like graphene with excellent conductive properties and superior hardness, but the material also has luminescent properties, has been able to achieve over 1000 square meters of large-scale production, is expected to become a strong challenger graphene.

Graphene, which consists of carbon atoms in a single layer material, due to its extremely good mechanical and electrical properties, are more and more electronic and mechanical equipment to get applications. Such as transistors, switches, lighting and other devices can see its shadow.

Physicists say the researchers British photoelectric research center Southampton University developed this material called molybdenum disulfide. Such new ultra-thin metal / sulfide material, the transition metal is called a disulfide compound (TMDCs), it was previously considered graphene is expected to become a substitute material. Unlike graphene, TMDCs can also emit light, which can be manufactured using the light emitting device and a photodetector. Until recently, however, include the manufacture TMDCs including molybdenum disulfide has been more difficult. Because most of the techniques can only produce a sheet material, and the small area, usually only a few hundred square microns, can not achieve large-scale applications.

In the new study, the research team at the University of Southampton in England by using a chemical vapor deposition technique, has been able to produce an area of ​​over 1000 square meters, the ultra-thin thickness of only a few atoms of molybdenum disulfide material.

The school led the study, Dr. Kevin Huang photoelectric research center, said that since 2001 they have been working on the synthesis of compounds chalcogenide materials (CVD) process. Only a microscope lens compared to the size of the material, large area production processes molybdenum disulfide, for the relevant material in the field of nano-electronics and opto large-scale commercial application, paving the way. They are currently working with several British companies and universities and the Massachusetts Institute of Singapore, Nanyang Technological University to cooperate.

Wong said the new technology is not only able to obtain a large area, thickness uniformity of thin film materials, these materials can be transferred to any substrate, which greatly increased the scope and potential demand for this material, I believe that people in the near future be able to use electronic products and equipment made ​​from this new material.



 

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