Combining low-temperature gettering with phosphorus
Combining low temperature gettering with phosphorus diffusion gettering for improved multicrystalline silicon
... the phosphorus-diffused layer at low temperatures, but this can probably be ruled out because the segregation coefficient of iron into the phosphorus-doped layer increases with decreasing ...
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Passivation effects on low temperature gettering in multicrystalline silicon
... The time dependence of interstitial iron and lifetime in sam- ples from the middle of the ingot is strongly passivation de- pendent. The abrupt reduction in lifetime observed in relatively high-lifetime samples with I-E ...
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Low temperature gettering in multicrystalline silicon materials for photovoltaics
... an increase in interstitial iron concentration but this increase is far too small to account for the dramatic lifetime reduction. The samples with SiN x passivation lifetime improves in both the MB and MT samples at an ...
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Hydrogenation effect on low temperature internal gettering in multicrystalline silicon
... of low temperature internal gettering for samples sourced from different height positions of a commercially grown mc-Si ...on low temperature internal gettering using a temporary ...
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Low temperature saw damage gettering to improve minority carrier lifetime in multicrystalline silicon
... Damage Gettering to Improve Minority Carrier Lifetime in Multicrystalline Silicon ...at low temperatures (700 ...damage gettering is effective at 500 to 700 C and, when combined with subsequent ...
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Increasing minority carrier lifetime in as grown multicrystalline silicon by low temperature internal gettering
... Two key differences between our methodology and that used by Krain et al. may account for the substantial differen- ces between our results. First, they used silicon nitride passi- vation, which is thought by some to ...
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Competitive gettering of iron in silicon photovoltaics : oxide precipitates versus phosphorus diffusion
... 5 Combining this with well-established techniques for meas- uring bulk iron concentrations by photodissociation of iron boron pairs 15–17 enables the simultaneous quantification of levels of iron in the bulk and ...
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Phosphorus diffusion gettering process of multicrystalline silicon using a sacrificial porous silicon layer
... from low-cost multicrystalline silicon (mc-Si) wafers and then enhance their electronic ...applying phosphorus diffusion into a sacrificial porous silicon (PS) layer in which the gettered impurities have ...
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Phosphorus implants for off-state improvement of SOI CMOS fabricated at low temperature
... of phosphorus implants for off-state improvement of SOI CMOS fabricated at low temperature encountered several challenges, primarily with fabrication issues which may have compromised electrical ...
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Environment Protection Engineering ENRICHMENT OF PAO AND DPAO RESPONSIBLE FOR PHOSPHORUS REMOVAL AT LOW TEMPERATURE
... of phosphorus from the cells of PAO) and glycolysis of ...up phosphorus in excess of the anaerobic release to store them as poly-P, usually called luxury phosphorus uptake, simultaneously ...
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Biological phosphorus removal during high-rate, low-temperature, anaerobic digestion of wastewater
... These findings support the idea that modified AD systems could provide the basis for significant recovery and reuse of phosphorus from wastewaters, a significant advance in AD treatment technologies. However, the ...
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Realization of radial p n junction silicon nanowire solar cell based on low temperature and shallow phosphorus doping
... novel low-temperature and shallow phosphorus doping ...shallow phosphorus doping process was carried out in a hot wire chemical vapor disposition chamber with a low substrate ...
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Concentrations and Reactions of Iron in Crystalline Silicon after Aluminum Gettering
... incorporate gettering techniques into the processing scheme of solar ...Traditionally, phosphorus-diffusion gettering is most widely used since it is automatically included in emitter formation on ...
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Effect of the Phosphorus Gettering on Si Heterojunction Solar Cells
... recombination. Phosphorus (P) gettering was introduced to reduce metal impurities in the bulk region of Si wafers and then to improve the efficiency of Si heterojunction solar cells fabricated on the ...P ...
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Food Groups for Low Potassium and Low Phosphorus Diets
... and Low Phosphorus Diets When you have kidney disease, you may need to follow a diet low in sodium, potassium and phosphorus. This diet is sometimes called a renal diet. You may need to follow ...
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Effect of phytase supplementation on apparent phosphorus digestibility and phosphorus output in broiler chicks fed low-phosphorus diets
... Monogastric animals, such as poultry and pig, have virtually no phytase activity of their own. Thus, the availability of phosphorus (P) in feedstuffs of plant origin is generally very low, ranging from 30 ...
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Low Temperature Refrigeration
... transition temperature de- pends on several factors, including com- position and ...coincident low pressure associ- ated with the temperature is ...
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LOW-TEMPERATURE ASPHALT
... >> The difference is in the temperature The crucial difference compared to conventional hot asphalt is the processing and laying temperature. In numbers, this is a temperature reduction of 20 – ...
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Low Temperature Ignition of Biomass
... ignites. Low temperature pyrolysis kinetics have been utilised to predict ignition delay times at low ...characteristic temperature from TGA ...of low activation energy for pyrolysis on ...
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A low temperature redetermination of cyheptamide
... The robust- ness of this motif is reflected in the fact that it is observed in all three polymorphic forms of (II) (monoclinic: Bandoli et al. , 2006) and in a predicted crystal structur[r] ...
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