Abstract
A system for measuring the spectral responsivity and quantum efficiency of solar cells is described. We have developed and characterized a traceable measurement setup for measuring the spectral responsivity S(λ) and photovoltaic quantum efficiency at Central Metallurgical Research and Development Institute (CMRDI); we report experimental measurements for spectral responsivity, reflectance, and quantum efficiency measurements covering the wavelength from 300 nm to 1800 nm. For this purpose, we adapted and improved a system designed to measure the External Quantum Efficiency (EQE) and the Internal Quantum Efficiency (IQE) of different types of solar cells as the determination of the spectral responsivity is an essential part of solar cell characterization. Furthermore, this research discusses a procedure for measuring the spectral responsivity of Si and InGeAs detectors used as a reference cell for spectral responsivity and photovoltaic quantum efficiency measurements of solar cells. The system construction and its associated uncertainty budget are described as estimated in detail.
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