Fig. 5: Temporal evolution of the phonon sidebands in the IX emission.
From: Polarons shape the interlayer exciton emission of MoSe2/WSe2 heterobilayers
a IX emission of the 2H − sample sample using a pulsed laser excitation (pulse duration 1 ns, Eex = 1.96 eV, repetition rate 1/200 ns) for average Pex = 20 nW and 20 μW. The ZPL is marked by a gray dotted line. b False color map of a time resolved IX emission spectrum for Pex = 20 μW. c PL time traces for 1.385 eV (orange), 1.388 eV (black, ZPL) and 1.394 eV (violet). A biexponential decay is observed. In gray, the instrument response function (IR). d Fast (black) and slow (red) decay time obtained from a bi-exponential fit to the data in b).
