Author Affiliations

Alexey Chernikov,^1,*,† Timothy C. Berkelbach,^2,† Heather M. Hill,¹ Albert Rigosi,¹ Yilei Li,¹ Özgur B. Aslan,¹ David R. Reichman,² Mark S. Hybertsen,³ and Tony F. Heinz¹

¹Departments of Physics and Electrical Engineering, Columbia University, 538 West 120th Street, New York, NY 10027, USA

²Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA

³Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973-5000, USA

^†these authors contributed equally to this work

^*Corresponding author: aac2183@columbia.edu