ISTpro program by ISTest is a popular online tool for treating impedance spectroscopy data of dye-sensitized solar cells. ISTpro allows you to evaluate the performance of a set of DSC by analysis of chemical capacitance and recombination resistance plots vs. voltage, and to visualize additional features such as the internal voltage and efficiency, using the standard analysis protocols developed by Bisquert, Fabregat-Santiago and co., that have become universally adopted.
Now ISTPro runs in your computer.
Please download the desktop application and evaluate the use. If you do frequent analysis of DSCs you will find this tool invaluable for analysis and publication of your results.