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Title: Determining spectral response of a photovoltaic device using polychromatic filters
Authors: Sara, Ira D.
Betts, Thomas R.
Gottschalg, Ralph
Issue Date: 2014
Publisher: © The Institution of Engineering and Technology (IET)
Citation: SARA, I.D., BETTS, T.R. and GOTTSCHALG, R., 2014. Determining spectral response of a photovoltaic device using polychromatic filters. IET Renewable Power Generation, 8 (5), pp. 467 - 473.
Abstract: This study introduces a new method for determining the spectral response of a photovoltaic (PV) device. Instead of illuminating the PV device under test with monochromatic beams at different wavelengths, the device is irradiated with different broadband spectra. Variations in the spectra are made by employing different types of polychromatic filters. The advantage of using these types of filters is the increase in the light intensity incident on the measurement plane, compared with narrowband filtered light. As a consequence, the spectral response measurement setup becomes very simple, comprising only a light source, a set of polychromatic filters, spectroradiometer and source-meter unit. The spectral response is determined by fitting the short-circuit currents measured under different spectra to a chosen spectral response model. The proposed method is verified by comparing the results to spectral response curves measured with a traditional monochromatic method, which show excellent agreement. From this analysis, it can be concluded that the proposed method is feasible as a new technique for determining the spectral response of a PV device.
Description: This is an Open Access Article. It is published by IET under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/
Sponsor: This work has been supported by a joint UK-India initiative in solar energy through a joint project ‘Stability and Performance of Photovoltaics (STAPP)’ funded by the Research Councils UK (RCUK) Energy Programme in the UK [grant no: EP/H040331/1] and by the Department of Science and Technology (DST) in India.
Version: Published
DOI: 10.1049/iet-rpg.2013.0248
URI: https://dspace.lboro.ac.uk/2134/16266
Publisher Link: http://dx.doi.org/10.1049/iet-rpg.2013.0248
ISSN: 1752-1416
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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