Abstract
The room-temperature electroluminescence (EL) band in the 1.2–1.7 μm range in boron-implanted silicon with implantation energy of 50 keV and 700 keV was investigated. This band is attributed to the defects in the implantation region introduced by implanted ions. The defects are unstable under the annealing temperature as low as 350°C. The EL intensity of the device implanted at 700 keV is much stronger than that of the device implanted at 50 keV due to the higher defect concentration and the improved minority carrier injection ratio. The absence of this band in photoluminescence measurements indicates that the luminescence band can only be electrically driven. Further enhancement of this EL band can be achieved by optimizing the implantation parameters.
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Gao, Y., Shen, H., Cao, J. et al. Defect-Related Electroluminescence in the 1.2–1.7 μm Range from Boron-Implanted Silicon at Room Temperature. J. Electron. Mater. 47, 4970–4974 (2018). https://doi.org/10.1007/s11664-018-6194-9
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DOI: https://doi.org/10.1007/s11664-018-6194-9