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IPCE measurement system

External quantum efficiency measurement system (IPCE or EQE) is an essential tool to study optical performance of solar cells and is a complementary analysis for the basic I-V characterization, which provides the power efficiency of the device. The system we offer provides quasi monochromatic light using single wavelength LEDs in the wavelength range of 370-940 nm. Measurement is controlled by software and calibration is made using an internal reference cell. An important advantage of this system is the high intensity of incident light compared to monochromator-based systems. This leads to device IPCE measurement at Voc near to the operating condition; which is especially important for thin film solar cells. This system can be used for silicon solar cells, DSSC, Perovskite solar cells, CIGS solar cells and organics solar cells.

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