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Large-area irradiance-mode spectral response measurements of solar cells by a light-emitting-diode- based integrating sphere source

Published

Author(s)

Behrang H. Hamadani, John F. Roller, Andrew M. Shore, Brian P. Dougherty, Howard W. Yoon

Abstract

An irradiance-mode absolute differential spectral response measurement system based on a light emitting diode (LED) array is described. The LEDs are coupled to an integrating sphere whose output irradiance is uniform to better than 2 % over an area of 160 mm by 160 mm. Diffuse irradiation of solar cells by the sphere is compared with collimated irradiance measurements, and issues originating from the differences in angular response of the reference and the test cells are further investigated. Large-area cells with dimensions of up to 155 mm are measured and the short circuit current (Isc) of the cells under the AM 1.5 standard reference spectrum is calculated and is shown to have good agreement with the secondary calibration measurements.
Citation
Applied Optics
Volume
53
Issue
16

Keywords

photovoltaics, solar cell, measurements, physics, light emitting diodes, integrating sphere

Citation

Hamadani, B. , Roller, J. , Shore, A. , Dougherty, B. and Yoon, H. (2014), Large-area irradiance-mode spectral response measurements of solar cells by a light-emitting-diode- based integrating sphere source, Applied Optics, [online], https://doi.org/10.1364/AO.53.003565 (Accessed June 14, 2024)

Issues

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Created May 30, 2014, Updated November 10, 2018