Semiconductor Molybdenum disulfide
It is not a good semiconductor. Scientists and chemists are looking for other materials to replace graphene. They are synthesizing other two-dimensional flakes that are flexible and transparent with electronic properties that graphene is unable to match.
This is one.
Molybdenum disulfide Overview
Molybdenum diulfide, a TMD (transition metal disulfide material), was synthesized in 2008. The name is the structure of these materials: a molybdenum-containing transition metal atom and a pair atoms, including selenium and sulfur from column 16, of the periodic chart.
TMDs are all semiconductors. This is a surprise to electronics manufacturers. The TMDs are about the same thickness as graphene.
They also have other benefits. One of the main advantages for molybdenum is its electron mobility, or the speed with which electrons move in the sheet. The electron migration of molybdenum is 100 cm2/vs. (That is, 100 electrons/square centimeter per second). This is significantly lower than that of crystalline silica, which is around 1400 cm2/vs. However, it is still thinner than amorphous silicone and other similar materials. Scientists study semiconductors to use them in future products like flexible display screens or other electronic devices that can be flexibly strained.
Research on Molybdenum diulfide
Studies have shown molybdenum diulfide to be extremely easy-to-make, even in large pieces of materials. This allows engineers the ability to test electronic products quickly.
In 2011, a research team led by Andras Kis of the Swiss Federal Institute of Technology published an article in “Nature-Nanotechnology”, saying that they used a single layer of molybdenum disulfide thin-film of only 0.65 nanometers to make the first transistors. The products of the first generation and their subsequent versions have many unique features that distinguish them from more technologically advanced silicon-based products.
Molybdenum diulfide also has some other desirable properties. One of them is the direct bandgap. It allows the material convert electrons to photons or vice versa. This feature makes molybdenum a great candidate for use in optical products, including light emitters. lasers. photodetectors. and solar cells. Yi-Hsien says that because this material has abundant reserves, is non-toxic, and low-priced, its future looks bright. Tomanek however believes that the rate of electron migration is higher than what Tomanek claims.
This is not sufficient. In a crowded electronic market, it’s difficult to maintain a competitive advantage. The structural characteristics of the material are to blame. It is because electrons will bounce when they come into contact with larger metals atoms. Scientists believe this “stumblingblock” is only temporary. Researchers are attempting to overcome these obstacles. They have made a multilayer sheet of molybdenum sulfide that is slightly thicker.
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