Synthesis mechanism of heterovalent Sn2O3 nanosheets in oxidation annealing process
Zhao Jun-Hua†a), Tan Rui-Qinb), Yang Yec), Xu Weic), Li Jiac), Shen Wen-Fengc), Wu Guo-Qianga), Yang Xu-Fenga), Song Wei-Jiec)
       
(a) XPS spectra and (b) valence-band spectrum of Sn3O4 nanosheets annealed under oxygen atmosphere at 300 °C for 1 h.