crystalline silicon


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Related to crystalline silicon: Amorphous silicon

crystalline silicon

Silicon that has an ordered atomic structure. It is used in almost all integrated circuits in the electronics industry. Fabricated from quartzite, a pure form of sand, the quartzite is treated (see below) to create polycrystalline silicon (polysilicon), a very pure silicon with multiple single-crystal regions of different sizes and orientations. The polysilicon is used to "grow" a single-crystal (monocrystalline) ingot that is sliced into wafers.

From Quartzite to Polysilicon
A common method of creating polysilicon is to mix quartzite with carbon materials in order to produce a very pure silicon that is then exposed to hydrogen chloride. This yields trichlorosilane, which is decomposed by an electric current in a chamber. The result is rods of polycrystalline silicon, which become the raw material for the crystal pulling process that creates the ingots. Contrast with amorphous silicon. See polysilicon.
References in periodicals archive ?
And of course, the multitude of analytical tools and techniques developed for the semiconductor industry are also relevant in the development of next-generation high-efficiency crystalline silicon solar cells.
Although this material has a lower energy yield than crystalline silicon, solar cells based on it can be produced far more cheaply.
The familiar consumer products are based on a cheaper, thin film silicon process that is less efficient and has a shorter lifetime than the crystalline silicon modules.
Its patent-pending Pluto technology for crystalline silicon solar cells improves power output by up to 12% compared to conventional production methods.
And polymers are cheap and nontoxic, while high-quality crystalline silicon is decidedly not cheap.
In the early 1950s the Czochralski meter is developed for producing pure crystalline silicon.
EquipNet Auctions will host a global online auction as a result of a restructuring liquidation of AMG Idealcast Solar Corps Crystalline Silicon Solar Production Facility located in Frederick, MD.
The United States International Trade Commission (USITC) today announced the remedy recommendations that it will forward to the President in its global safeguard investigation regarding imports of crystalline silicon photovoltaic cells (whether or not partially or fully assembled into other products).
DuPont (NYSE: DD) has acquired Innovalight Inc, a company specialising in advanced silicon inks and process technologies that increase the efficiency of crystalline silicon solar cells.
Taipei, April 6, 2011 (CENS)--Regardless of reports that demands for crystalline silicon wafers are losing steam, Sino-American Silicon Products Inc.
DNP) has developed polyolefin encapsulants suitable mainly for uses with crystalline silicon photovoltaic (PV) cells.
India, June 20 -- Solar Source Corporation (SSC) will be setting up a 30 MW manufacturing facility in Windsor to produce crystalline silicon solar photovoltaic panels.