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At what temperature will ni=10^14/cm^3 in silicon? And ni=10^16/cm^3?

  • physics -

    ni is the intrinsic carrier (electron and hole) concentration. You can find the ni(T)equation at this website:
    http://pvcdrom.pveducation.org/SEMICON/NI.HTM

    It is based on experimental data obtained up to 375 K. You may have to extrapolate to higher temperatures to get ni = 10^16

  • physics -

    The site that I referenced has a calculation tool that says that
    ni = 10^14 cm^-3 at T = 470 K , and
    ni = 10^16 at T = 645 K.

    Just be aware that you are extrapolating beyond the experimental data base.

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