Fast and Straightforward Synthesis of Luminescent Titanium(IV) Dioxide Quantum Dots

Figure 4

(a) XPS survey spectra of titanium oxide quantum dots with Mg anode. (b) XPS high-resolution spectra of Ti 2p region with indicated spin-orbit split and FWHM values for each orbital taken with Mg anode (full square) and spectra taken with Al anode on the same sample (full circle) and taken with Al anode on diluted sample (Ti at not detectable level) for Auger peak confirmation (open circle).

(a)

(b)