Evaluation of surface energy state distribution and bulk defect concentration in DSSC photoanodes based on Sn, Fe, and Cu doped TiO2

Enhanced efficiency of dye-sensitized solar cells based on Mg and La co-doped TiO 2 photoanodes

“…The insert Eg3 depicts indicates broadening for the co-doped nanocrystalline powders with respect to pure TiO2. Some reports have suggested that the presence of Ti -O -M (where M is a metal ion with oxidation number lower than Ti 4+ ) distorts charge transfer and promotes an oxygen vacancy that can be observed as a broadening of the Eg3 vibration mode [28,29]. As observed in Table 1 [31].…”

“…7C denotes the chemical capacitance, Cct, against photovoltage of the DSSC. The variation of the surface free energy state with respect to the potential can be evaluated for the different photoanodes [29,37,39]. We observed that the surface free energy states of the co-doped TiO2 photoanodes are higher than that of pure TiO2.…”

Passivation of defect states in anatase TiO2 hollow spheres with Mg doping: Realizing efficient photocatalytic overall water splitting

“…The electrons on d orbit have abundant energy levels, which could cause more interband states [23][24][25]. Thus, doping with transition metal elements in TiO 2 is always introducing more considerable trapping states, which are widely considered to be harmful the POWS realization [26,27].…”

Mesoporous Sn‐TiO2 Catalysts by Molecular Protection Strategy for the Baeyer‐Villiger Oxidation of Cyclohexanone with Molecular Oxygen

“…Figure was the Raman spectra for different samples. For 0Sn‐TiO 2 ‐EN sample, five peaks centered about 149 cm −1 , 199 cm −1 , 393 cm −1 , 514 cm −1 and 636 cm −1 , corresponding to E g 1, E g 2, B g 1, A g 1+B g 1, E g 3 models, respectively, can be found, suggesting the formation of typical anatase TiO 2 . However, these peaks intensities decreased and slightly shifted to longer Raman shift after the tin species were introduced, indicating that the tin species were successfully incorporated into the anatase TiO 2 lattice .…”