Helmers, HenningHenningHelmersSchauerte, MeikeMeikeSchauerteHöhn, OliverOliverHöhnBeattie, MeghanMeghanBeattieWilson, PaigePaigeWilsonHinzer, KarinKarinHinzerLackner, DavidDavidLackner2023-08-102023-08-102023Note-ID: 00007CBEhttps://publica.fraunhofer.de/handle/publica/448002Photonic power converters for C-band optical wavelengths are developed. Photovoltaic cells based on In0.53Ga0.47As absorber material grown lattice-matched on InP substrate are grown and fabricated as single-junctions as well as multi-junction stacks. Thin film single-junction cells are realized by wet chemical removal of the InP substrate. A Au back reflector is implemented and increases voltage by up to 11 mV. 10-junction devices are demonstrated including measurement results under 1522 nm laser light. They demonstrate the capability of multiplying the output voltage.enpresentation