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Molecules and Crystals

Problem 6.209

Fig. 6.11 illustrates logarithmic electric conductance as a function of reciprocal temperature (T in kK units) for some \(n\) -type semiconductor. Using this plot, find the width of the forbidden band of the semiconductor and the activation energy of donor levels.

Reveal Answer
ΔE=−2kΔln⁡σΔ(T−1)=1.2 and 0.06eV\Delta E=-2 k \frac{\Delta \ln \sigma}{\Delta\left(T^{-1}\right)}=1.2 \text { and } 0.06 \mathrm{eV}
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