2. DYNAMIC CHARACTERIZATIONS
OF SOLAR CELL
2.1 Intensity modulation transfer
impedance spectroscopy
An AC equivalent circuit of a solar
cell/module is shown in Fig.1, consisting of
a series resistance Rs, a shunt resistance Rsh,
an internal dynamic resistance Rd , a
transition capacitance CT , and a diffusion
capacitance Cd. Rd and CT are voltage
dependent, but Cd is voltage and frequency
dependent [1-3].