20 August 2005 Realization of compact, passively-cooled, high-flux photovoltaic prototypes
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Abstract
The materialization of a recent conceptual advance in high-flux photovoltaic concentrators into first-generation prototypes is reported. Our design strategy includes a tailored imaging dual-mirror (aplanatic) system, with a tapered glass rod that enhances concentration and accommodates larger optical errors. Designs were severely constrained by the need for ultra-compact (minimal aspect ratio) modules, simple passive heat rejection, liberal optical tolerances, incorporating off-the-shelf commercial solar cells, and pragmatic considerations of affordable fabrication technologies. Each unit has a geometric concentration of 625 and irradiates a single square 100 mm2 triple-junction high-efficiency solar cell at a net flux concentration of 500.
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Daniel Feuermann, Jeffrey M. Gordon, Steve Horne, Gary Conley, Roland Winston, "Realization of compact, passively-cooled, high-flux photovoltaic prototypes", Proc. SPIE 5942, Nonimaging Optics and Efficient Illumination Systems II, 59420Q (20 August 2005); doi: 10.1117/12.613082; https://doi.org/10.1117/12.613082
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