Extended Data Fig. 8: Excitation power dependence of resonance energy in PL.
From: Electrically tunable quantum confinement of neutral excitons

a, Shift in resonance energy of X2D (blue) and XQC (black) states relative to their energy measured at the lowest excitation power. b, Evolution of energy splitting between two successive quantum-confined states with power. The shaded areas represent errors from fitting.