Modak, PrasantaPrasantaModakD'Hondt, MarkMarkD'HondtMoerman, IngridIngridMoermanVan Daele, PeterPeterVan DaeleMijlemans, P.P.MijlemansDemeester, PietPietDemeester2021-10-142021-10-142001https://imec-publications.be/handle/20.500.12860/54845.2% efficiency InAlGaP microcavity LEDs at 640nm on Ge substratesJournal article