Identification of surface oxygen vacancy-related phonon–plasmon coupling in TiO<sub>2</sub> single crystal

Identification of surface oxygen vacancy-related phonon–plasmon coupling in TiO₂ single crystal

Guo Jun-Hong¹, Li Ting-Hui², Hu Fang-Ren^{1, †,}, Liu Li-Zhe^{3, ‡,}

(a) The Raman spectra of TiO₂ surface calculated by DFT, (b) the Raman spectra of TiO₂ surface calculated by phonon–plasmon coupling mechanism.