I-V curve measurements

CREST can perform current-voltage (I-V curve) measurements at Standard Test Conditions (STC) according to IEC60904-1 for a wide range of devices. These span from research scale devices from 10 mm x 10 mm up to commercial modules of 2.5 m x 2.5 m in size. Cells are measured with a steady state dual-light-source solar simulator and modules are measured with a pulsed light solar simulator. Section measurement are performed to minimise hysteresis effects. All measurements are traceable to SI units and the perfomance parameters (i.e. P_MAX, V_OC, I_SC, η) are acompanied with uncertainty estimates validated through international inter-comparissons.