The following electrical characteristics have been determined for both intrinsic and p-type extrinsic indium phosphide (InP) at room temperature:

\begin{tabular}{cccc} \hline & (m)I & n(m3) & p(m3) \\ \hline Intrinsic & 2.5106 & 3.01013 & 3.01013 \\ Extrinsic (n-type) & 3.6105 & 4.51014 & 2.01012 \\ \hline \end{tabular}