This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under grant numbers EXC 2089/1–390776260 (to S.A.M.), and TI 1063/1 (to A.T.). We also acknowledge the Bavarian program Solar Energies Go Hybrid (SolTech), and the Center for NanoScience (CeNS). W.L. acknowledges the Alexander von Humboldt Foundation for the postdoctoral fellowship. S.A.M. additionally acknowledges the Australian Research Council and the Lee-Lucas Chair in Physics. Funded by the European Union (ERC, METANEXT, 101078018 and EIC, OMICSENS, 101129734) (to  A.T. and A.A.). The authors are grateful to Maxim Gorkunov for useful discussions. Views and opinions expressed are, however, those of the author(s) only and do not necessarily reflect those of the European Union, the European Research Council Executive Agency, or the European Innovation Council and SMEs Executive Agency (EISMEA). Neither the European Union nor the granting authority can be held responsible for them.