Figure 4.

Schematics of excitonic energy levels ordering illustrating the bright exciton splitting (BES), dark exciton splitting (DES), bright-dark exciton splitting, and ${\mathrm{\Delta }}_{\mathrm{ST}}$ used for simple modeling as described in the text. The bright-dark splitting is affected by splittings within bright and dark exciton manifolds, whereas ${\mathrm{\Delta }}_{\mathrm{ST}}$ is not.