Makita, K.; Kamikawa, Y.; Mizuno, H.; Oshima, R.; Shoji, Y.; Ishizuka, S.; Müller, R.; Lackner, D.; Dimroth, F., Sugaya, T., GaAs//CuIn1−yGaySe2 Three-Junction Solar Cells With 28.06% Efficiency Fabricated Using a Bonding Technique Involving Pd Nanoparticles and an Adhesive, IEEE J. Photovolt. 2022, 12(2), 639-645