Mr. Jeffrey Humphries Profile

Jeffrey Humphries

at Honeywell FM&T

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Proceedings Article | 3 September 2008 Paper

Packaging and thermal management of photovoltaic cells for high-power applications

Jeffrey Humphries

Proceedings Volume 7070, 70700U (2008) https://doi.org/10.1117/12.795676

KEYWORDS: Solar cells, Packaging, Optics manufacturing, Copper, Manufacturing, Ceramics, Photovoltaics, Optical alignment, Transformers, Electronics

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Recent improvements in photovoltaic cell technologies have increased efficiency and decreased size to the point that they are much more attractive for use in optically powered and isolated electronics. Applications can include powering a small group of components for simple sensors to much more complex systems which incorporate high speed digital communication between remote locations. Although optical to electrical conversion efficiencies are approaching 50%, the remaining power is still lost as heat. Heat becomes a compound problem because too much can cause photocell efficiency to decrease producing more heat and eventually leading to thermal runaway and breakdown. Thermal management is the key to balancing the maximum amount of input power while minimizing the effect of heat on the efficiency. This paper describes an effort currently under way to develop packaging which combines passive alignment techniques with changes to photocell architecture specifically designed to improve thermal management.

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