1. A graphical presentation of the current versus the voltage from a photovoltaic device as the load is increased from the short circuit (no load) condition to the open circuit (maximum voltage) condition. The shape of the curve characterized cell performance.
2. IV curve or Current-Voltage curve of a solar cell/panel shows the possible combinations of current and voltage output of a photovoltaic (PV) device. It is a graph that plots the current versus the voltage from the PV device as the electrical load (or resistance) is increased from short circuit (no load) to open circuit (maximum voltage). The shape of the curve characterizing cell performance. Three important points on the I-V curve are the open-circuit voltage (Voc), short-circuit current (Isc), and peak or maximum power (operating) point (Pmpp).
Solar cell characterization
https://www.solar-electric.com/learning-center/general-solar-information/photovoltaic-solar-power-glossary.html (1.); http://www.solarmango.com/dictionary/i-v-curve/ (2.)
Author: Thomas D.