Fig. 1: Characterization of FICO nanocrystals.
From: Infrared driven hot electron generation and transfer from non-noble metal plasmonic nanocrystals
a Absorption of FICO nanocrystals (NCs) and FICO–Rhodamine B (RhB) complex. Insert shows the RhB absorption with vertical axis magnified by 5 times (×5). b TEM image of FICO NCs. c Tauc plot (red line) of FICO NCs and its liner fit (black dotted line) showing the optical bandgap of FICO at ~3.49 eV. d Band diagram of the FICO NCs and RhB. Ef is Fermi level, \(B_{{\mathrm{g}},{\mathrm{opt}}}\) is the optical bandgap and \(B_{\mathrm{g}}^\prime\) is the direct bandgap after band renormalization correction. The arrows show the optical transitions with energy of \(B_{\mathrm{g}}^\prime\) and \(B_{{\mathrm{g}},{\mathrm{opt}}}\).
