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. 2019 Oct 28;2(11):7214–7219. doi: 10.1021/acsanm.9b01714

Figure 2.

Figure 2

Pump-induced transient absorption spectra for the 3.8 nm average diameter QDs excited by 100 fs pulses with a wavelength of 380 nm and fluence of 9.5 × 1014 photons·cm–2. Contour plot shows the change in absorption, ΔA, as a function of wavelength and delay time, where a negative value of ΔA (green and blue) demonstrates a bleach effect.