Charge Density Wave Activated Excitons in TiSe$_2$-MoSe$_2$ Heterostructures

Jaydeep Joshi, 2 Benedikt Scharf, Igor Mazin, 2 Sergiy Krylyuk, Daniel J. Campbell, Johnpierre Paglione, 6 Albert Davydov, 2, 5 Igor Žutić, and Patrick M. Vora* 2 Department of Physics and Astronomy, George Mason University, Fairfax, Virginia 22030, United States Quantum Science and Engineering Center, George Mason University, Fairfax, Virginia 22030, United States Institute for Theoretical Physics and Astrophysics and Würzburg-Dresden Cluster of Excellence ct.qmats, University of Würzburg, Am Hubland, 97074, Würzburg, Germany Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, Maryland 20742, United States Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada Department of Physics, University at Buffalo, Buffalo, New York 14260, United States