Molybdenum target application prospect of industrialization will take time 2010 China Nonferrous network - non-ferrous metal authoritative media platform California NanoSystems Institute (CNSI) successful use of MoS2 ( molybdenite , molybdenum disulfide ) produced the Hui molybdenum based flexible micro- processing chip to MoS2 -based microchip is only equal to 20% the size of the silicon chip , low power consumption. Molybdenite layer material shows a good semiconductor characteristics , some performance over the now widely used silicon and graphene , is expected to become the next generation of semiconductor materials.
1 molybdenite -performance semiconductor materials, application prospects
Molybdenite based flexible micro- processing chip was first proposed by the Swiss Institute of Technology in Lausanne (EPFL) Laboratory of nanoelectronics and structure proposed and is expected to become the next generation of semiconductor material , its power consumption is much lower than the silicon material , but also to produce a smaller transistors , and with this new generation of
The laboratory had earlier used methods for graphene research . Researchers crushed between the folded tape molybdenite crystals , layers of peeling , until all that is left is a single atom thick slices . Then, the molybdenum film is deposited on a substrate , and then add a layer of insulating material , and using standard photolithography to add the source electrode and the drain electrode and the gate , so that a transistor is formed .Molybdenite transistor with electrical mobility transistors with similar graphene nanoribbons made .
Molybdenite is a semiconductor that allows electronic jump over , this attribute is called the band gap can be used for digital transistors. No graphene bandgap semiconductors difficult to put it into graphene prospect that ultra- high-speed analog circuits , telecommunications and radar. Molybdenite bandgap particular promise for more efficient flexible solar cells , electronics or high-performance digital microprocessors. Molybdenite is molybdenum disulfide. . Swiss Institute of Technology EPFL researchers believe that molybdenite is abundant in nature , commonly used in smelting alloys and other fields, but the electrical properties of study before it is not much, but in fact molybdenite single semiconductor material has good properties. And is now widely used in silicon materials, molybdenite has two main advantages: First, to achieve the same effects are smaller . Only 0.65 nanometers thick molybdenite material in which electrons can be like at 2 nm thick silicon material to move freely as in the same time, existing technology can not be made of silicon material takes molybdenite material as thin ; Second, more energy low . It is estimated that molybdenite transistors made in the standby mode energy consumption is only about one hundred thousandth of silicon transistors .
Molybdenum carbide has a high melting point and hardness, good thermal stability and mechanical stability, and excellent corrosion resistance and other characteristics. Molybdenum is a silvery white refractory metal, a melting point of 2615 ℃, density of 10.2 g / cm 3, the expansion coefficient is small, a special tube is almost the same coefficient of expansion of the glass. Molybdenum stable at room temperature is higher than 600 ℃, rapidly oxidized.
没有评论:
发表评论