This written content is guarded by copyright and might not be reused. If you wish to cooperate with us and would like to reuse a number of our articles, remember to Call: [email protected].

Photoelasticity is considered a handy measurement Resource for non-harmful and contactless willpower of mechanical stresses or strains from the production of silicon wafers.

Skip to principal information Thank you for traveling to nature.com. You are employing a browser version with minimal aid for CSS. To obtain the ideal experience, we endorse you utilize a far more current browser (or switch off compatibility manner in Internet Explorer).

用途：是制造半导体硅器件的原料，用于制大功率整流器、大功率晶体管、二极管、开关器件等

The stress-optical coefficient C frequently depends upon the material and wavelength. It relates the distinction between the principal stresses σI and σII on the stage difference δ.

3. Best Warmth Tolerance: One-crystal silicon demonstrates a reduced–temperature coefficient, making it possible for it to face up to significant working temperatures with no sizeable electricity output losses.

PV solar cells are created by imprinting a crystalline structure of silicon on to a conductive wafer. They must be produced inside a specific orientation to achieve this exact alignment. On the whole, the PV cell is set inside of a body that may be tilted at an angle of about 30-five degrees.

The crystals which make up the silicon wafer can also be set in a specific orientation. To start, the wafer is imprinted with a wonderfully flat, crystalline structure that acts similar to a hexagonal pattern. On just one side with the wafer is then etched a hexagonal grating with alternating grooves.

The adjust in impermeability is assumed for being modest as opposed with the unstressed impermeability, meaning that nij≈nijo. Thus, two simplifications is usually made:

This could thus result in way more uniform ingots with regards to resistivity that happen to be also extended as you're not restricted to the commencing melt quantity. A downside of the continual Cz process is, having said that, that impurities by using a minimal segregation coefficient could be crafted up during the soften causing significant concentrations within the latter Section of the pulling procedure. The CCz strategy is presently only used at a small scale as a consequence of its complexity. A brief animation of the method is proven down below.

For more info the reason that no grain framework is present the surface subjected to the electrolyte is modest originally. Consequently, quantity enlargement has only insignificant results on the cost/discharge efficiency.

The bar is then slowly and gradually pulled up and rotated concurrently. This permits the stretched material to solidify into a monocrystalline cylindrical ingot nearly two meters very long and weighing many hundred kilograms.

We have been sorry, but your search couldn't be accomplished as a result of server timeouts. Remember to test once more afterwards.

This design corresponds on the aspect of the solar mobile that should accept daylight most successfully. On the other aspect of the flat wafer, a second crystal structure referred to as a Yoke is imprinted that functions in a perpendicular method to the 1st crystalline construction to make certain Electricity gaps are made involving Each and every layer.