1. D. Fuhrmann et al., “About 42%-class CPV cells and pathways beyond” Proc. of 9th International Conference on Concentrator Photovoltaics, Miyazaki, 2013.
2. V. Khorenko et al., “Roadmap for the next generations of European Space Solar Cells” 29th EU PVSEC, Amsterdam 2014.
3. T. Torunski et al., “Development and Qualification of Upright Metamorphic 4J Space Solar Cells4G32C-Advanced”, Space Power Workshop, Torrance, CA, US, 2019.
4. J. Geisz et al., “50% or Bust: Status of Six-Junction Concentrator Solar Cells”, CPV-15, Fes, Marocco, 2019.
5. Four-Junction Wafer-Bonded Concentrator Solar Cells