Umg
Umg news and technical articles from Solid State Technology Magazine. Search Umg latest and archived news and articles
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Timminco cuts off UMG output, no rescue in "foreseeable future"
… suspend its upgraded metallurgical silicon ( UMG ) operations on lack of demand for the solar ..... grade silicon and helping customers make UMG wafers and cells "indistinguishable from ..... polysilicon," the company has decided to suspend UMG production "pending evidence of sufficient …
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MONO/MULTI/NANO/UMG SILICON; Silicon dioxide layer key to high-efficiency crystalline solar cells
Integration of wet oxidation technology into the fabrication of next-generation c-Si solar cells will enable the continued reduction in cost/W of energy generated
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Survival of the FIT-est: PV industry competition to intensify in 2010
… FBR) and Upgraded Metallurgical Grade ( UMG ) also found that 2009 was not a kind year ..... potential. For the foreseeable future, FBR and UMG market penetration will be curtailed given ..... coming two years and as various FBR and UMG projects get delayed or even cancelled …
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Shining more light in epitaxial thin-film silicon solar cells
… efficiency) 31.7 634 80.8 16.2 Epitaxial solar cell on UMG silicon substrate and screenprinted metal contacts 30.6 613 ..... is one of them. Currently, lower-purity materials such as UMG (upgraded metallurgical silicon material) and off-spec …
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Improved efficiency boosts PV panel prospects
… supplies. Manufacturers would like to use so-called upgraded metallurgical grade ( UMG ) silicon to reduce their cost. As the name implies, the quality of UMG silicon lies somewhere between electronics-grade and metallurgical-grade material …
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Improved efficiency boosts PV panel prospects
… supplies. Manufacturers would like to use so-called upgraded metallurgical grade ( UMG ) silicon to reduce their cost. As the name implies, the quality of UMG silicon lies somewhere between electronics-grade and metallurgical-grade material …
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Imec reports record efficiencies for large-area epitaxial thin-film silicon solar cells
… thick high-quality epitaxial silicon stacks both on top of a highly-doped high-quality substrate and on a low-cost, UMG (upgraded metallurgic grade)-type , multi-crystalline Si substrate. The p+-type back surface field (BSF), the p …
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Globe Speciality reopens silicon plant
… Globe will allow ESD to offer solar cell manufacturers up to 25 percent of Globe’s upgraded metallurgical grade silicon ( UMG -Si) production at a reduced price as an incentive to locate to New York State. Globe’s initial investment of $27 million …
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High-efficiency cell production -- just like trekking to the North Pole
… year timelines, and often complemented by projected transition points to thinner wafers or upgraded metallurgical-grade ( UMG ) silicon, both of which have simply been pushed out (or postponed) as wafer raw material costs have plummeted. Two things …
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Applied gains Advent Solar, c-Si improvements to fend off thin-film foes
… company. The technology is compatible with both multicrystalline and monocrystalline as well as upgraded metallurgical silicon ( UMG ). The planar module assembly also means higher capacity/area and faster/easier handling and production. For Applied …
