Fig. 5: Power-dependent behavior of IXs for different layer combinations.
From: Observation of giant dipole moments of interlayer excitons via layer engineering
a–d Evolution of PL spectra of IX for 2L/4L, 2L/5L, 2L/6L, and 3L/6L. The increasing excitation powers (from bottom to top) for a–d are 0.13 mW, 0.2 mW, 0.325 mW, and 0.5 mW, respectively. e The blue shift versus excitation power for various layer combinations. Inset: comparison of the blue shift increasing rate (m) and corresponding dipole moments.
