Blar i NTNU Open på forfatter "Dal Martello, Elena"
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Impurity distribution and reduction behaviour of quartz in the production of high purity silicon
Dal Martello, Elena (Doktoravhandlinger ved NTNU, 1503-8181; 2012:182, Doctoral thesis, 2012)The production of solar grade silicon is based on the use of expensive high purity carbon and quartz feedstock as well as various silicon refining techniques. Impurities in the feedstock materials enter the silicon during ... -
X-ray Microprobe Investigation of Iron During a Simulated Silicon Feedstock Extraction Process
Bernardis, Sarah; Fakra, Sirine C.; Dal Martello, Elena; B. Larsen, Rune; Newman, Bonna K.; Fenning, David P.; Di Sabatino Lundberg, Marisa; Buonassisi, Tonio (Peer reviewed; Journal article, 2016)Elemental silicon is extracted through carbothermic reduction from silicon-bearing raw feedstock materials such as quartz and quartzites. We investigate the micron-scale distribution and valence state of iron, a deleterious ...