Exciton tuning in monolayer WSe${}_2$ via substrate induced electron doping

Yang Pan, Mahfujur Rahaman, Lu He +8

We report on large exciton tuning in WSe${}_2$ monolayers via substrate induced non-degenerate doping. We observe a redshift of $\sim$62 meV for the $A$ exciton together with a 1-2 o…