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Behrang H. Hamadani, Andrew M. Shore, Howard W. Yoon, Mark Campanelli
Abstract
We used an LED-array-based combinatorial flux addition method to explore the wavelength and the intensity-dependence of the spectral responsivity in silicon solar cells. Many types of silicon cells, whether mono- or multi-crystalline type, exhibit notable nonlinear behavior of current with light intensity at illumination intensities below 0.01-sun equivalent levels. This effect is particularly pronounced when exposed to near-infrared light close to the peak of the spectral responsivity. However, some cases show the perseverance of nonlinearity all the way up to 1-sun intensity levels. In such cases, use of these cells as reference cells has implications for the accuracy of electrical performance measurements.
Hamadani, B.
, Shore, A.
, Yoon, H.
and Campanelli, M.
(2019),
Nonlinear Response of Silicon Solar Cells, 44th IEEE photovoltaic specialist conference, Washington, DC, [online], https://doi.org/10.1109/PVSC.2017.8366502
(Accessed October 27, 2025)