Instrumentation techniques for characterization of solar cells
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Answer:
Solar cell characterization instruments and techniques enable users to assess device performance, understand factors affecting performance, and characterize properties of device materials. LED illumination can show how light spectra and solar cell quantum efficiency (QE) interact to cause solar cell current generation. From many perspectives, the most important solar cell characterization parameter is its energy conversion efficiency. A solar cell's energy input is the energy contained in the illumination light. Most solar cells are intended for use with natural sunlight illumination which varies widely in intensity and spectrum. A solar cell's conversion efficiency depends on the spectral content of the illumination source. Most solar cell researchers and developers can perform accurate device performance measurements when equipped with high‐quality QE and current voltage (I‐V) curve measurement systems accompanied by calibration devices and test fixtures appropriate for the device types measured.
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