Molybdenum Disulfide- New Graphene Alternative-material
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- Category: Molybdenum's News
- Published on 12 June 2016
- Written by yiping
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Recently, the University Southampton Optoelectronics Research Center successfully developed a new material- molybdenum disulfide (MoS2) which can replace graphene.
As we known, graphene has excellent properties such as low resistance, high thermal conductivity, and high strength and so on. Besides, it is very thin, which is almost transparent, and very dense, so often used as raw material of transparent electronic products, such as touch display screen, light panels and solar panels. It is one kind of superior performance new nanomaterials.
British researchers of photoelectric research center successfully prepared a new material- molybdenum disulfide (MoS2), which has many features met with graphene, including excellent electrical conductivity and mechanical strength, but the difference is molybdenum disulfide is a metallic material made of molybdenum and sulfur. This metal-sulfide material is also known as transition-metal dichalcogenides (TMDCs), because it has similar properties with graphene, and therefore is expected to become an alternative new material of graphene. On the other hand, TMDCs can also light, so it can be used in photodetectors and light-emitting device, which is graphene can not be achieved.
Dr. Kevin Huang who developed MoS2 since 2001 has been to use chemical vapor deposition (chemical vapour deposition, CVD) to synthesize the TMDCs material. As technology continues to mature, they can use the technology to obtain ultra-thin film and the area is more than 1000 mm2, but its thickness is only a few atoms only. CVD method can produce large-scale MoS2 film, greatly improving the prospects of this material at the nanoscale electronic and optoelectronic fields. Dr. Kevin Huang also pointed out that they not only can obtain large-scale film, but also can transfer this film to any substrate, thus potentially increasing the potential demand of this material. They are currently working with a number of UK companies and universities, including some of the leading international organizations such as the Massachusetts Institute of Technology (MIT) and Nanyang Technological University and so on.
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