Photoelectrochemical Properties Of The CdS Sensitized TiO₂ Nanocrystallin Thin Film Electrode

Dye sensitized solar cells (DSSC) have been an active research project since 1991, and lots of trials have been made in order to enhance its solar energy conversion efficiency. One of the most important approaches is to tuning the absorption spectra of the organic dyes, being anchored onto the TiO₂ surface.The special size-select optical property of the inorganic semiconductor nanocrystal makes it easy to tune the absorption spectrum of inorganic semiconductor particles and thus inorganic semiconductor can be an alternative candidate instead of organic dyes to fabricate a solar cell. Based on this consideration, we prepared the CdS sensitized TiO₂ nanocrystal thin film electrode, and its photoelectrochemical properties have been investigated.TiO₂ nanocrystal thin film was prepared by the doctor blade method, and the CdS sensitized TiO₂ electrodes were obtained by depositing CdS onto the TiO₂ surface via a simple successive ionic layer adsorption...