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Design and characterization of solar cells require both optical simulations using FDTD and electrical simulations using CHARGE. This is because the performance of solar cells depend not only high optical absorption, but also effective charge transportation and the output electrical power.
To evaluate the performance of the solar cell, we typically measure the photovoltaic energy conversion efficiency, where FF is the fill-factor, V oc is the open-circuit voltage, J sc is the short-circuit current, and S AM1.5G is the incident power from the AM1.5G solar model:100mW/cm2.
Use tools in the Constraints group in the Design tab to add constraints to sketches. Certain sketching tools included rudimentary tangency and coincident constraints (enabled with the Maintain Connectivity option), but these may be overridden during drawing editing.