Conventionally, conduction in silicon is enhanced by doping — adding impurities that change the material's electronic structure. But exploiting surface effects in thin silicon films may offer yet other opportunities.
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Boland, J. Transport news. Nature 439, 671–673 (2006). https://doi.org/10.1038/439671a
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DOI: https://doi.org/10.1038/439671a
