Blar i NTNU Open på forfatter "Bernardis, Sarah"
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Copper in compensated p- and n-type Czochralski silicon: Diffusivity, influence on the majority charge carrier density and mobility
Gaspar, Guilherme Manuel Morais; Modanese, Chiara; Bernardis, Sarah; Enjalbert, N.; Arnberg, Lars; Dubois, S.; Di Sabatino Lundberg, Marisa (Peer reviewed; Journal article, 2022)Copper contamination risks are present throughout the whole crystalline silicon solar cell process flow, namely during ingot growth processes using recycled feedstock, wafer sawing and metallisation. Copper is a fast-diffusing ... -
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 ...