Comments on "Analysis of photocurrent decay (PCD) method for measuring minority-carrier lifetime in solar cells"

The three-dimensional photocurrent decay analysis in the above paper has been extended in the case of the thick cell. The resulting expression has been solved numerically to obtain a set of curves relating the minority-carrier lifetime τ with the decay time
t
(both normalized with respect to
(a^{2}D)^{-1}
, where
a
and
D
are the optical absorption and minority-carrier diffusion coefficients, respectively) for a wide range of current decay ratios.