Fig. 2 | Nature Communications

Fig. 2

From: Clear and transparent nanocrystals for infrared-responsive carrier transfer

Fig. 2

TR-IR measurements and excitation spectra. a Kinetic profiles for the transient absorption of ITO NCs and ITO/SnO2 at the ps scale at 5000 nm upon the excitation by a 1700-nm laser. The instrument response function (IRF) (FWHM of IRF = 285 ± 40 fs) is shown by the pink line (see also Supplementary Figure 6). b TR-IR spectrum of ITO/SnO2 at 10 ps after excitation of the LSPR band by a 1700-nm laser. The features of the observed FCA spectrum (black circles) agrees well with the absorption spectrum reproduced by simulation (red line)15. c Excitation spectrum for the FCA of SnO2. The probe light had a fixed wavelength of 5000 nm and the excitation-light wavelength changed with the laser power kept at 6 μJ/pulse. d The kinetic profile of ITO/SnO2 at 5000 nm in the μs region following excitation by the 1400-nm laser. (FWHM of IRF = 0.485 μs). The red line shows the line of best fit

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