| We established a solar cell performance testing platform by the software Lab VIEW, including a PCI-GPIB card from American National Instrument (NI) Corporation as well as6517Electrometer/High Resistance Meter from Keithley Corporation. Using the Lab VIEW program to control the PCI-GPIB, the system has the functions of collecting, displaying, storing and analyzing the voltage and current data of solar cells. It can also draw the Ⅴ-Ⅰ characteristic curve according to the measured data and figure out the open voltage (Voc), short current (Isc), maximum power (Pm), fill factor (FF) and percentage of conversion efficiency (PCE) of the solar cells. The performance parameters of the solar cells were measured by the system. This system not only has a high degree of automation, but also a high degree of accuracy and reliability. And it not only can be used in laboratory teaching, also can be used in the factory for solar cell products performance testing. |
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