Effect of parasitic Resistances
Source: MDPI

The Impact of Resistive Effects in Solar Cells

Understanding Parasitic Resistances

Resistive effects in solar cells play a significant role in reducing their efficiency by dissipating power in the resistances present. The two most common types of parasitic resistances in solar cells are series resistance and shunt resistance.

Series and Shunt Resistance in Solar Cells

Series resistance and shunt resistance are included in the solar cell model to account for these parasitic effects. The presence of these resistances impacts the fill factor of the solar cell. The magnitude and influence of series and shunt resistance are dependent on the solar cell’s geometry and operating point.

Area-Normalized Resistance

When comparing the series resistance of solar cells with different areas, it is essential to use a common unit for resistance, typically measured in Ωcm2. This area-normalized resistance is calculated by dividing the voltage (V) by the current density (J) in the solar cell.

Solar Cell Equivalent Circuit

Effects of Series and Shunt Resistances

The effects of series and shunt resistances on solar cell performance can be profound. Understanding and minimizing these resistive effects are crucial in enhancing the overall efficiency and effectiveness of solar cells.

Effect of parasitic Resistances
Source: MDPI

Leave a Reply