Figure 2
From: Band Alignment and Controllable Electron Migration between Rutile and Anatase TiO2
TIRA-ESS in vacuum for rutile nanoparticles.
a, TIRA-ESS in the visible to NIR region for two different size of 21 and 100 nm in diameter. b, Averaged TIRA-ESS in vacuum of three independent measurements for 100-nm rutile nanoparticles in the NIR region. Standard errors were plotted as the error bars, the observed transition peak wavelengths assigned as the transitions from EFs (880 nm) to the localized excited states are labeled in blue, EFs and the other two levels of the trapped electrons below EFs are labeled in red. All the arrows are used as the guide for view.
