Importance of ligands on TiO<sub>2</sub> nanocrystals for perovskite solar cells

Importance of ligands on TiO₂ nanocrystals for perovskite solar cells

Zhao Yao, Zhao Yi-Cheng, Zhou Wen-Ke, Fu Rui, Li Qi, Yu Da-Peng, Zhao Qing^†

(color online) (a) General XPS spectra of TiO₂ nanocrystals. (b) Cl 2p XPS spectra of TiO₂ nanocrystals with different TiAc₂ content (). (c) Ti 2p XPS spectra. (d) C1s XPS spectra.