Solar cell parameters gained from every I-V curve include the short circuit current, Isc, the open circuit voltage, Voc, the current Imax and voltage Vmax at the maximum power point Pmax, the fill factor (FF), and the power conversion efficiency of the cell, η [2–6].
Abstract: The key technique for measuring the Ampere-Volt (I-V) characteristic of a solar cell is to control the electronic load. In this paper, a new technique for measuring the I-V characteristics of solar cells is proposed.
The measured values for voltage, current and temperature are recorded by separate and externally triggered calibrated multimeters. Both n- and p-type solar cells with edge lengths between 20 and 175mm and short-circuit currents of up to 15A are measured. Figure 2. CalTeC’s I–V curve measurement facility.
The I–V curve of a solar cell represents the relationship between the current and voltage output of the solar cell under various conditions of illumination and temperature. It is a graph that plots the current produced by the solar cell against the voltage applied to the cell. The I–V curve of a Si solar cell is shown in Fig. 8.5.
These techniques include measurements of the solar cell's current–voltage (IV) curve, external quantum efficiency (EQE), capacitance–voltage (CV) curve, and transient photovoltage (TPV) response. IV curves provide information on the solar cell's maximum power output, open-circuit voltage, short-circuit current, and fill factor.
Solar simulator I-V curve measurements of cells are typically carried out in the testing laboratory by employing a second cell, a calibrated reference cell. This reference cell is used to monitor and measure the total irradiance of the solar simu-lator during I-V testing.