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As a typical, two-dimensional material graphene finds wide application in many fields. It is also highly sought after both by industry and the scientific community. What exactly is a 2-dimensional material? Simple, two-dimensional material is a non-nanoscale (1 to 100 nm) material in which electrons are able to move freely in two directions (planar movement). Examples of such materials include: graphene; boron-nitride; transition metal compounds, (disulfide); Molybdenum; tungsten-disulfide and tungsten-disilicide.
2D materials can be used in a variety of fields. If we combine the introductions from the authors, the following examples can be given: spintronics (printed electronics), flexible electronics, microelectronics (memory, processors), hyperlenses (terahertz), supercapacitors, solar cell, security labels. , quantum dots, sensors, semiconductor manufacturing, NFC, medical, etc.
Molybdenum diulfide, also known as MoS2, is a typical 2-dimensional material that deserves our attention. Molybdenum diulfide, which is composed of two atoms of molybdenum with one atom of sulfur, has only a three-atom thickness. Molybdenum diulfide and graphene are almost identical in thickness, but graphene has no band gap. The author of this article once stated that the US Department of Energy Berkeley Lab had accurately measured band gap of semiconductor two-dimensional materials molybdenum sulfide and revealed a powerful tuning mechanism.
In addition, the molybdenum diulfide has an electron mobility that is 100 cm2 /vs. (i.e. 100 electrons per centimeter square per volt), although it's much lower than crystal. The silicon has a 1400 cm2/vs electron transfer rate, but has a higher migration rate than other ultra-thin semiconductors and amorphous silica.
Molybdenum diulfide, with its excellent semiconductor properties, small size, ultra thin, and softness, is especially suitable for transistors, flexible electronic, LEDs lasers, solar cells.
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