The Reduced Recombination and the Enhanced Lifetime of Excited Electron in QDSSCs Based on Different ZnS and SiO₂ Passivation

Figure 1

(a) X-ray diffraction patterns, (b) Raman spectra of TiO₂/CdS/CdSe, (c) FESEM images of TiO₂ film, (d) FESEM images of the TiO₂/CdS/CdSe, and (e) cross-sectional FESEM of the TiO₂/CdS/CdSe.

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