Concentrator Cell Efficiency Measurement Errors Caused by Unfiltered Xenon Flash Solar Simulators

Carl R. Osterwald; Mark W. Wanlass; Tom Moriarty; Myles A. Steiner; Keith A. Emery

doi:10.1063/1.4897049

Concentrator Cell Efficiency Measurement Errors Caused by Unfiltered Xenon Flash Solar Simulators

Carl R. Osterwald, Mark W. Wanlass, Tom Moriarty, Myles A. Steiner, Keith A. Emery

Chemistry and Nanoscience

Research output: Contribution to conference › Paper › peer-review

11 Scopus Citations

Abstract

In this paper, we examine the effects of increased irradiance into one subcell of triple-absorber concentrator solar cells during efficiency measurements. This situation can easily occur when unfiltered xenon flash solar simulators are used for illumination. We demonstrate how excess irradiance into bottom subcells causes artificially increased fill factors, and that commonly used measurement procedures are unable to account for any excess irradiance. The effect always results in efficiency values that are too high.

Original language	American English
Pages	149-153
Number of pages	5
DOIs	https://doi.org/10.1063/1.4897049 https://doi.org/10.1063/1.4897049
State	Published - 2014
Event	10th International Conference on Concentrator Photovoltaic Systems, CPV 2014 - Albuquerque, United States Duration: 7 Apr 2014 → 9 Apr 2014

Conference

Conference	10th International Conference on Concentrator Photovoltaic Systems, CPV 2014
Country/Territory	United States
City	Albuquerque
Period	7/04/14 → 9/04/14

NREL Publication Number

NREL/CP-5J00-60762

Keywords

Concentrator
Efficiency
Error
Measurement
Photovoltaic
Solar

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Osterwald, C. R., Wanlass, M. W., Moriarty, T., Steiner, M. A., & Emery, K. A. (2014). Concentrator Cell Efficiency Measurement Errors Caused by Unfiltered Xenon Flash Solar Simulators. 149-153. Paper presented at 10th International Conference on Concentrator Photovoltaic Systems, CPV 2014, Albuquerque, United States. https://doi.org/10.1063/1.4897049, https://doi.org/10.1063/1.4897049

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keywords = "Concentrator, Efficiency, Error, Measurement, Photovoltaic, Solar",

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year = "2014",

doi = "10.1063/1.4897049",

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pages = "149--153",

note = "10th International Conference on Concentrator Photovoltaic Systems, CPV 2014 ; Conference date: 07-04-2014 Through 09-04-2014",

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Osterwald, CR, Wanlass, MW, Moriarty, T, Steiner, MA & Emery, KA 2014, 'Concentrator Cell Efficiency Measurement Errors Caused by Unfiltered Xenon Flash Solar Simulators', Paper presented at 10th International Conference on Concentrator Photovoltaic Systems, CPV 2014, Albuquerque, United States, 7/04/14 - 9/04/14 pp. 149-153. https://doi.org/10.1063/1.4897049, https://doi.org/10.1063/1.4897049

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AU - Moriarty, Tom

AU - Steiner, Myles A.

AU - Emery, Keith A.

PY - 2014

Y1 - 2014

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AB - In this paper, we examine the effects of increased irradiance into one subcell of triple-absorber concentrator solar cells during efficiency measurements. This situation can easily occur when unfiltered xenon flash solar simulators are used for illumination. We demonstrate how excess irradiance into bottom subcells causes artificially increased fill factors, and that commonly used measurement procedures are unable to account for any excess irradiance. The effect always results in efficiency values that are too high.

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KW - Efficiency

KW - Error

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KW - Photovoltaic

KW - Solar

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Concentrator Cell Efficiency Measurement Errors Caused by Unfiltered Xenon Flash Solar Simulators

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