Molybdenum disulfide nanoelectromechanical system ultra-thin ultra-small ultra-low power consumption
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Graphene, a typical material with two dimensions, is widely used and highly sought-after by scientists and the industry. What exactly is a 2-dimensional material? Simple, two-dimensional material is a non-nanoscale (between 1 and 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 diulfide, disilicide; black phosphorus.
2D materials can be used in a variety of fields. Taking into account the introductions made by the authors, we can list the following examples: printed electronics, flexible electronic, microelectronics (including memory), processors, hyperlenses and terahertz. , 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 three atoms of thickness. The graphene thickness is nearly the same as molybdenum, but graphene has no band gap. In this context, the author has previously revealed that the US Department of Energy Berkeley Lab research team accurately measured band gap of semiconductor two-dimensional molybdenum-disulfide material (MoS2). It also revealed powerful The tuning mechanisms and relationship between electronic and optical properties of a 2-dimensional material.
In addition, the molybdenum diulfide has an electron mobility that is 100 cm2 /vs. (ie. 100 electrons per centimeter square per volt), although it's much lower than crystal. The silicon has an electron migration rate of about 1400 cm2/vs. However, it is better than amorphous silica and other ultra thin semiconductors.
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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