Fig. 4: Insights into charge transfer dynamics in pure Nb2O5 and In2O3/Nb2O5 S-scheme heterojunctions.
From: Ultrafast electron transfer at the In2O3/Nb2O5 S-scheme interface for CO2 photoreduction
a The pseudocolor plot, and (b) transient absorption spectra of pure Nb2O5 recorded at indicated delay times measured with 340 nm excitation. Corresponding kinetic decay curves at 530 nm within 100 ps of (c) pure Nb2O5 in Ar, (d) IN20 in Ar, (e) IN10 in Ar, and (f) IN10 in CO2. The decay pathways of photogenerated holes in (g) pure Nb2O5, (h) In2O3/Nb2O5 heterojunctions in Ar, and (i) In2O3/Nb2O5 heterojunctions in CO2.
