The experimental method to determine the spectrally-resolved optical efficiency of concentrating optics is described in this paper. The measurement uses a multi-junction solar cell as light sensor and a series of band-pass filters to isolate the optical performance of different narrow spectral bands throughout the spectrum of interest. Additional bias light is provided to saturate the subcells whose spectral response is out of the transmittance of every band-pass filter. The method allows the characterization of the combined transmittance, reflectance and absorbance of every material composing the optics including optical couplers and thin layers such as antireflective coatings. The two application cases included illustrate the potential of this novel characterization technique. Firstly, a novel refractive concentrator, the Achromatic Doublet on Glass (ADG) Fresnel lens is measured. Secondly, the method is applied to analyze the degradation of outdoor exposed glass molded Secondary Optical Elements (SOE).
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6 September 2017
13TH INTERNATIONAL CONFERENCE ON CONCENTRATOR PHOTOVOLTAIC SYSTEMS (CPV-13)
1–3 May 2017
Ottawa, Canada
Research Article|
September 06 2017
Spectrally-resolved optical efficiency using a multi-junction cell as light sensor: Application cases
Marta Victoria;
Marta Victoria
a)
Instituto de Energía Solar, Universidad Politécnica de Madrid
, Madrid, Spain
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César Domínguez;
César Domínguez
Instituto de Energía Solar, Universidad Politécnica de Madrid
, Madrid, Spain
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Norman Jost;
Norman Jost
Instituto de Energía Solar, Universidad Politécnica de Madrid
, Madrid, Spain
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Guido Vallerotto;
Guido Vallerotto
Instituto de Energía Solar, Universidad Politécnica de Madrid
, Madrid, Spain
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Ignacio Antón;
Ignacio Antón
Instituto de Energía Solar, Universidad Politécnica de Madrid
, Madrid, Spain
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Gabriel Sala
Gabriel Sala
Instituto de Energía Solar, Universidad Politécnica de Madrid
, Madrid, Spain
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a)
Corresponding author: marta.victoria@ies.upm.es
AIP Conf. Proc. 1881, 030011 (2017)
Citation
Marta Victoria, César Domínguez, Norman Jost, Guido Vallerotto, Ignacio Antón, Gabriel Sala; Spectrally-resolved optical efficiency using a multi-junction cell as light sensor: Application cases. AIP Conf. Proc. 6 September 2017; 1881 (1): 030011. https://doi.org/10.1063/1.5001422
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