Device Characterization for Design Optimization of 4 Junction Inverted Metamorphic Concentrator Solar Cells

John Geisz; Ryan France; Ivan Garcia; Myles Steiner; Daniel Friedman

doi:10.1063/1.4897041

Device Characterization for Design Optimization of 4 Junction Inverted Metamorphic Concentrator Solar Cells

John Geisz, Ryan France, Ivan Garcia, Myles Steiner, Daniel Friedman

Chemistry and Nanoscience

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

22 Scopus Citations

Abstract

Quantitative electroluminescence (EL) and luminescent coupling (LC) analysis, along with more conventional characterization techniques, are combined to completely characterize the subcell JV curves within a fourjunction (4J) inverted metamorphic solar cell (IMM). The 4J performance under arbitrary spectral conditions can be predicted from these subcell JV curves. The internal radiative efficiency (IRE) of each junction has been determined as a function of current density from the external radiative efficiency using optical modeling, but this required the accurate determination of the individual junction current densities during the EL measurement as affected by LC. These measurement and analysis techniques can be applied to any multijunction solar cell. The 4J IMM solar cell used to illustrate these techniques showed excellent junction quality as exhibited by high IRE and a one-sun AM1.5D efficiency of 36.3%. This device operates up to 1000 suns without limitations due to any of the three tunnel junctions.

Original language	American English
Pages	114-118
Number of pages	5
DOIs	https://doi.org/10.1063/1.4897041 https://doi.org/10.1063/1.4897041
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

Bibliographical note

Publisher Copyright:
©2014 AIP Publishing LLC.

NREL Publication Number

NREL/CP-5J00-61746

Keywords

4-junction
Concentrator solar cell
Electroluminescence
Luminescent coupling

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Geisz, J., France, R., Garcia, I., Steiner, M., & Friedman, D. (2014). Device Characterization for Design Optimization of 4 Junction Inverted Metamorphic Concentrator Solar Cells. 114-118. Paper presented at 10th International Conference on Concentrator Photovoltaic Systems, CPV 2014, Albuquerque, United States. https://doi.org/10.1063/1.4897041, https://doi.org/10.1063/1.4897041

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abstract = "Quantitative electroluminescence (EL) and luminescent coupling (LC) analysis, along with more conventional characterization techniques, are combined to completely characterize the subcell JV curves within a fourjunction (4J) inverted metamorphic solar cell (IMM). The 4J performance under arbitrary spectral conditions can be predicted from these subcell JV curves. The internal radiative efficiency (IRE) of each junction has been determined as a function of current density from the external radiative efficiency using optical modeling, but this required the accurate determination of the individual junction current densities during the EL measurement as affected by LC. These measurement and analysis techniques can be applied to any multijunction solar cell. The 4J IMM solar cell used to illustrate these techniques showed excellent junction quality as exhibited by high IRE and a one-sun AM1.5D efficiency of 36.3%. This device operates up to 1000 suns without limitations due to any of the three tunnel junctions.",

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author = "John Geisz and Ryan France and Ivan Garcia and Myles Steiner and Daniel Friedman",

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Geisz, J , France, R, Garcia, I, Steiner, M & Friedman, D 2014, 'Device Characterization for Design Optimization of 4 Junction Inverted Metamorphic Concentrator Solar Cells', Paper presented at 10th International Conference on Concentrator Photovoltaic Systems, CPV 2014, Albuquerque, United States, 7/04/14 - 9/04/14 pp. 114-118. https://doi.org/10.1063/1.4897041, https://doi.org/10.1063/1.4897041

TY - CONF

T1 - Device Characterization for Design Optimization of 4 Junction Inverted Metamorphic Concentrator Solar Cells

AU - Geisz, John

AU - France, Ryan

AU - Garcia, Ivan

AU - Steiner, Myles

AU - Friedman, Daniel

PY - 2014

Y1 - 2014

N2 - Quantitative electroluminescence (EL) and luminescent coupling (LC) analysis, along with more conventional characterization techniques, are combined to completely characterize the subcell JV curves within a fourjunction (4J) inverted metamorphic solar cell (IMM). The 4J performance under arbitrary spectral conditions can be predicted from these subcell JV curves. The internal radiative efficiency (IRE) of each junction has been determined as a function of current density from the external radiative efficiency using optical modeling, but this required the accurate determination of the individual junction current densities during the EL measurement as affected by LC. These measurement and analysis techniques can be applied to any multijunction solar cell. The 4J IMM solar cell used to illustrate these techniques showed excellent junction quality as exhibited by high IRE and a one-sun AM1.5D efficiency of 36.3%. This device operates up to 1000 suns without limitations due to any of the three tunnel junctions.

AB - Quantitative electroluminescence (EL) and luminescent coupling (LC) analysis, along with more conventional characterization techniques, are combined to completely characterize the subcell JV curves within a fourjunction (4J) inverted metamorphic solar cell (IMM). The 4J performance under arbitrary spectral conditions can be predicted from these subcell JV curves. The internal radiative efficiency (IRE) of each junction has been determined as a function of current density from the external radiative efficiency using optical modeling, but this required the accurate determination of the individual junction current densities during the EL measurement as affected by LC. These measurement and analysis techniques can be applied to any multijunction solar cell. The 4J IMM solar cell used to illustrate these techniques showed excellent junction quality as exhibited by high IRE and a one-sun AM1.5D efficiency of 36.3%. This device operates up to 1000 suns without limitations due to any of the three tunnel junctions.

KW - 4-junction

KW - Concentrator solar cell

KW - Electroluminescence

KW - Luminescent coupling

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U2 - 10.1063/1.4897041

DO - 10.1063/1.4897041

M3 - Paper

AN - SCOPUS:85006001498

SP - 114

EP - 118

T2 - 10th International Conference on Concentrator Photovoltaic Systems, CPV 2014

Y2 - 7 April 2014 through 9 April 2014

ER -

Device Characterization for Design Optimization of 4 Junction Inverted Metamorphic Concentrator Solar Cells

Abstract

Conference

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Keywords

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