Silicon lasers would help computers operate faster by replacing electrical connections with optical ones. The trouble is, normal silicon doesn't glow. Densely packed silicon nanocrystals could be the answer.
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Lasing with Pumping Levels of Si Nanocrystals on Silicon Wafer
Nanoscale Research Letters Open Access 15 November 2016
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Canham, L. Gaining light from silicon. Nature 408, 411–412 (2000). https://doi.org/10.1038/35044156
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DOI: https://doi.org/10.1038/35044156
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