Monday, January 31, 2011

Monocrystalline Silicon

Monocrystalline silicon is single. Has the basic complete bitmap structure of the crystal. Different direction has different properties, is a good semi-conducting water-resistant material. Purity requirement achieves 99.9999%, even to 99.9999999% above. Used in the manufacture of semiconductor devices, solar battery, etc. With high-purity polysilicon on planarization furnace control and into.

Basic concepts

Formula: Si

Molecular weight: 28.086

CAS number: 7440-21-3

Monocrystalline silicon is a kind of active non-metallic element, is an important part of crystal materials, in the frontier of the development of new materials. Its main use is used for semiconductor materials and utilization of solar photovoltaic energy, heat supply, etc. Due to the solar energy has clean, environmental protection, convenient wait for a lot of advantage, nearly three years, solar energy utilization technology in research and development, commercial production, marketing aspects has achieved great development, becomes the world fast and steady development of emerging industries in the world.

Development present situation

Monocrystalline silicon construction project has a huge market and wide development space. In the crust 25.8% of content of silicon, for monocrystalline produce inexhaustible source.

In recent years, various crystal materials, especially with monocrystalline silicon, as a representative of the high-tech value-added material and its relative high technology industry development, become the contemporary information technology industry pillar, and make the information industry has become a global economic developing the fastest growing leading industry. Monocrystalline silicon as an extremely potential, especial for the development and utilization of high-tech resources, is causing more and more concerned.

Meanwhile, in view of conventional energy supply limitation and environmental pressure increases, many countries in the world is starting the development and utilization of solar energy boom and become countries to create sustainable development strategy behead important content. In the 21st century threshold, most countries in the world to participate in the global scope raised for the development and utilization of solar energy heat "green", a wide range of large-scale using solar energy era is coming, the sun level monocrystalline silicon product will also so hot.

In addition, including China the governments have issued a series of "sunshine industry", the preferential policy gives relevant industry key support, monocrystalline silicon industry shows good prospects for development.

Monocrystalline silicon properties; Monocrystalline silicon with diamond crystal lattice. Crystal hard and brittle metal luster. Can conduct electricity. But the conductivity inferior to metal. Bureau increases with temperature. With semiconductor properties. Monocrystalline silicon is important semiconductor materials, in adding trace of monocrystalline IIIA group element. Forming p type semiconductor. Incorporating trace the first vA group element. Formation of n-type and P type conductor unifies in together. You can accomplish solar cells. Will be radiant energy into electricity. In the development of electricity is a promising materials.

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