NDLI: Evaluation of a combined CPV and TPV system under high DNI

Content Provider	IEEE Xplore Digital Library
Author	Mokri, A. Emziane, M.
Copyright Year	2011
Description	Author affiliation: Laboratory for Solar Energy Materials and Devices Masdar Institute of Science and Technology, PO Box 54224, Abu Dhabi, UAE (Mokri, A.; Emziane, M.)
Abstract	Concentrating photovoltaic systems (CPV) are usually composed of a Fresnel lens, and a three-junction two-terminal monolithically stacked solar cell. Stacking the sub-cells and the substrate monolithically raises the issue of the lattice and current matching. This issue limits the choice the materials and imposes optimization constraints. These constraints of current and lattice matching also exist in two-junction monolithically stacked solar cells. As a solution, an optical system is designed to keep the two quantum receivers apart while keeping the feature of converting different bands of the solar spectrum. In this paper, the design of a CPV system is presented. The system has two quantum receivers: a low bandgap cell which is sensitive to infrared radiation and another cell that has a high efficiency in the visible range of the solar spectrum, in addition to other optical components. The design shows an optical efficiency of 86.68 % and an overall conversion efficiency of 27 % while involving a GaAs (1.42 eV) and Ge (0.667 eV) single-junction solar cells.
Starting Page	158
Ending Page	161
File Size	357370
Page Count	4
File Format	PDF
ISBN	9781612841182
e-ISBN	9781612841199
DOI	10.1109/IEEEGCC.2011.5752487
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-02-19
Publisher Place	United Arab Emirates
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photovoltaic systems Optical filters Beam splitting Photovoltaic cells Gallium arsenide Receivers GaAs Ge Energy barrier Lenses
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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