Metallurgical silicium for the photovoltaics

Mukashev, B.N.; Betekbaev, A. A.

doi:10.15328/chemb_2012_227-33

Cited by 1 publication

(6 citation statements)

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“…In contrast to chemical (chlorosilane) methods, significantly (four times) lower electric power con sumption per kilogram of produced silicon is charac teristic of metallurgical technologies [6,[7][8][9], and they are more preferable from the viewpoint of ecol ogy. The use of chemical technologies is economically justified for microelectronics, where due to ultra high density integrated circuit packages (hundreds of mil lions of transistors per wafer) and their multifunction ality, the cost of silicon substrates is not so significant in terms of the unit cost of the end product.…”

Section: Semiconductorsmentioning

confidence: 99%

“…These concentrations are given in Table 1 [2,[7][8][9]. However, the commercial offers and prices given in Table 1 very dynamic, and these parameters are difficult to predict.…”

Section: Metallurgical Silicon and Fabrication Technologies Of "Solarmentioning

confidence: 99%

“…The indus trial production of MS is performed by reducing quartz using carbon and is rather well developed [2,[5][6][7].…”

Section: Metallurgical Siliconmentioning

confidence: 99%

“…"Kazsil icon" domestic enterprise produces MS using a Chi nese furnace. Data on initial (raw) material consump tion during MS production using this furnace are given in [7,12]. In general, except for the electric power, the characteristics of this furnace almost correspond to those of Bécancour Silicon Inc. [3,5,6].…”

Section: Metallurgical Siliconmentioning

confidence: 99%

“…The impu rity concentration in such "solar" grade MS should satisfy the following requirements: the boron and phosphorus concentrations should not exceed 0.3 and 1 ppmw, respectively, and the total content of calcium, aluminum, iron, and other impurities should be lower than ~2 ppmw [3,[5][6][7][8][9]. We note that oxygen and boron concentrations in SOG Si samples should also be measured, since the controlling this impurity is necessary in predicting the degradation of PECs under the effect of solar radiation.…”

Section: "Solar" Silicon Requirements For Impurity Contentsmentioning

confidence: 99%

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Study of silicon production processes and development of solar-cell fabrication technologies

Mukashev¹,

Betekbaev²,

Kalygulov³

et al. 2015

Semiconductors

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The methods of purification of "Kazsilicon" metallurgical silicon produced by the carbothermal method, i.e., the reduction of high purity Sary Kol quartz into carbon, are developed. These technologies provide the basis for the industrial production of silicon, solar cells, panels, and solar power plants. Using these technologies, solar grade silicon is produced, on the basis of which solar cells with an efficiency of 15.8-17.1% are fabricated. Panels of solar cells compose the "Astana Solar", i.e., the first solar power plant in Kazakhstan with a power of 250 kW, which was put into operation December 25, 2012.

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Section: Semiconductorsmentioning

confidence: 99%

“…These concentrations are given in Table 1 [2,[7][8][9]. However, the commercial offers and prices given in Table 1 very dynamic, and these parameters are difficult to predict.…”

Section: Metallurgical Silicon and Fabrication Technologies Of "Solarmentioning

confidence: 99%

“…The indus trial production of MS is performed by reducing quartz using carbon and is rather well developed [2,[5][6][7].…”

Section: Metallurgical Siliconmentioning

confidence: 99%

Section: Metallurgical Siliconmentioning

confidence: 99%

Section: "Solar" Silicon Requirements For Impurity Contentsmentioning

confidence: 99%

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