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Nonlinear Response of Silicon Solar Cells



Behrang H. Hamadani, Andrew M. Shore, Howard W. Yoon, Mark Campanelli


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.
Proceedings Title
44th IEEE photovoltaic specialist conference
Conference Dates
June 25-30, 2017
Conference Location
Washington, DC
Conference Title


solar cells, photovoltaics, spectral responsivity, nonlinear


Hamadani, B. , Shore, A. , Yoon, H. and Campanelli, M. (2019), Nonlinear Response of Silicon Solar Cells, 44th IEEE photovoltaic specialist conference, Washington, DC, [online], (Accessed May 18, 2024)


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Created January 1, 2019, Updated July 21, 2020