TY - CONF AU - von den Driesch, Nils AU - Stange, Daniela AU - Rainko, Denis AU - Zaumseil, Peter AU - Capellini, Giovanni AU - Hartmann, Jean-Michel AU - Schroeder, Thomas AU - Mantl, Siegfried AU - Grutzmacher, Detlev AU - Buca, Dan Mihai TI - Epitaxy of direct bandgap group IV heterostructure lasers PB - IEEE M1 - FZJ-2018-03835 SP - 175-176 PY - 2017 AB - We demonstrate epitaxial growth of direct bandgap group IV GeSn/SiGeSn double heterostructures and multi quantum wells. While both designs offer high structural quality and strong light emission, multi quantum wells benefit from a smaller number of defects at the active region. T2 - 2017 IEEE 14th International Conference on Group IV Photonics (GFP) CY - 23 Aug 2017 - 25 Aug 2017, Berlin (Germany) Y2 - 23 Aug 2017 - 25 Aug 2017 M2 - Berlin, Germany LB - PUB:(DE-HGF)8 DO - DOI:10.1109/GROUP4.2017.8082253 UR - https://juser.fz-juelich.de/record/849699 ER -