Experimental Evidence for Dark Excitons in Monolayer WSe_{2}

Author(s): Xiao-Xiao Zhang, Yumeng You, Shu Yang Frank Zhao, and Tony F. Heinz

Photoluminescence measurements of WSe${}_2$, a 2D semiconductor, reveal optically forbidden excitations in the material.

[Phys. Rev. Lett. 115, 257403] Published Tue Dec 15, 2015