Effect of luminescence coupling on EQE measurements of high efficiency multi-junction solar cells

Oliver Höhn; Patrick Schygulla; Ralph Müller; Michael Schachtner; David Chojniak; Gerald Siefer; David Lackner; Frank Dimroth

doi:10.1117/12.3022002

19 June 2024 Effect of luminescence coupling on EQE measurements of high efficiency multi-junction solar cells

Oliver Höhn, Patrick Schygulla, Ralph Müller, Michael Schachtner, David Chojniak, Gerald Siefer, David Lackner, Frank Dimroth

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Proceedings Volume PC13014, Photonics for Solar Energy Systems X; PC130140C (2024) https://doi.org/10.1117/12.3022002
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

As solar cells from direct semiconductors improve, i.e. become more radiative, luminescent coupling becomes more and more relevant. This has a strong impact on artifacts in EQE measurements of multi-junction solar cells, which e.g. is a challenge, when characterizing III-V//Si multi-junction solar cells. By measuring the response of these cells under varying illumination conditions, this effect can be understood and EQE measurements can be corrected.

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Oliver Höhn, Patrick Schygulla, Ralph Müller, Michael Schachtner, David Chojniak, Gerald Siefer, David Lackner, and Frank Dimroth "Effect of luminescence coupling on EQE measurements of high efficiency multi-junction solar cells", Proc. SPIE PC13014, Photonics for Solar Energy Systems X, PC130140C (19 June 2024); https://doi.org/10.1117/12.3022002

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KEYWORDS

External quantum efficiency

Multijunction solar cells

Luminescence

Light sources and illumination

Semiconductors

Solar cells

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