IQE 200B Quantum Efficiency Measurement System

The QEX7 system can measure the spectral response of a wide variety of photovoltaic devices, including p-n junction and dye-nanocrystalline solar cells (DSSCs). It includes a xenon light source, monochromator, filters, and reflective optics to provide monochromatic light to a photovoltaic device while a broadband bias light illuminates the test device to simulate end-use conditions. A computer interfaces with the monochromator, signal conditioning equipment, and digital signal processing equipment; interprets signals; maintains calibration information; saves test data; and produces test reports.