Procedures for Evaluating Multijunction Concentrators

K. Emery; M. Meusel; R. Beckett; F. Dimroth; A. Bett; W. Warta

doi:10.1109/PVSC.2000.916085

Procedures for Evaluating Multijunction Concentrators

K. Emery, M. Meusel, R. Beckett, F. Dimroth, A. Bett, W. Warta

Chemistry and Nanoscience

Fraunhofer Institute for Solar Energy Systems

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

69 Scopus Citations

Abstract

Procedures at NREL and Fraunhofer ISE for evaluating multijunction cells are detailed with a triple-junction GaInP/GaAs/Ge concentrator cell designed and grown at Spectrolab and processed at NREL [1], and a tandem Fraunhofer ISE Ga_0.35In_0.65P/Ga_0.63In_0.17As [2] cell as examples. The one-sun efficiency and I_sc for the triple-junction device measured at Fraunhofer ISE and NREL agreed within 0.2%, well below the ±6% uncertainty estimated by NREL. The procedures for determining the one-sun characteristics involve determining the quantum efficiency and using it for spectral correction during the I-V-characterization. The characteristics under concentration are evaluated with a flash simulator.

Original language	American English
Pages	1126-1130
Number of pages	5
DOIs	https://doi.org/10.1109/PVSC.2000.916085
State	Published - 2000
Event	28th IEEE Photovoltaic Specialists Conference, PVSC 2000 - Anchorage, United States Duration: 15 Sep 2000 → 22 Sep 2000

Conference

Conference	28th IEEE Photovoltaic Specialists Conference, PVSC 2000
Country/Territory	United States
City	Anchorage
Period	15/09/00 → 22/09/00

Bibliographical note

Publisher Copyright:
© 2000 IEEE.

NREL Publication Number

NREL/CP-520-28923

Access to Document

10.1109/PVSC.2000.916085

Cite this

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AU - Emery, K.

AU - Meusel, M.

AU - Beckett, R.

AU - Dimroth, F.

AU - Bett, A.

AU - Warta, W.

PY - 2000

Y1 - 2000

N2 - Procedures at NREL and Fraunhofer ISE for evaluating multijunction cells are detailed with a triple-junction GaInP/GaAs/Ge concentrator cell designed and grown at Spectrolab and processed at NREL [1], and a tandem Fraunhofer ISE Ga0.35In0.65P/Ga0.63In0.17As [2] cell as examples. The one-sun efficiency and Isc for the triple-junction device measured at Fraunhofer ISE and NREL agreed within 0.2%, well below the ±6% uncertainty estimated by NREL. The procedures for determining the one-sun characteristics involve determining the quantum efficiency and using it for spectral correction during the I-V-characterization. The characteristics under concentration are evaluated with a flash simulator.

AB - Procedures at NREL and Fraunhofer ISE for evaluating multijunction cells are detailed with a triple-junction GaInP/GaAs/Ge concentrator cell designed and grown at Spectrolab and processed at NREL [1], and a tandem Fraunhofer ISE Ga0.35In0.65P/Ga0.63In0.17As [2] cell as examples. The one-sun efficiency and Isc for the triple-junction device measured at Fraunhofer ISE and NREL agreed within 0.2%, well below the ±6% uncertainty estimated by NREL. The procedures for determining the one-sun characteristics involve determining the quantum efficiency and using it for spectral correction during the I-V-characterization. The characteristics under concentration are evaluated with a flash simulator.

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T2 - 28th IEEE Photovoltaic Specialists Conference, PVSC 2000

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Procedures for Evaluating Multijunction Concentrators

Abstract

Conference

Bibliographical note

NREL Publication Number

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