Future high-speed communications devices will require efficient long-wavelength emitters that are compatible with integrated circuits. The development of a 1.5 μm GaAs LED is an important step forward.
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Prasad, S. A deep-level LED. Nature Mater 2, 359–360 (2003). https://doi.org/10.1038/nmat911
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DOI: https://doi.org/10.1038/nmat911