Vahid Jabbari - Investigation on the energy conversion of dye-sensitized solar cells based on TiO2 core/shell using metal oxide as a barrier layer

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      Publication Details (including relevant citation   information):

      Applied Solar Energy 47 (4), 281-288

      Abstract:

     

        Photo-electrochemical solar cells based on a core-shell     structure including ZnO shell and TiO2 cove, have     been fabricated with ruthenium bipyridyl complex (N719) as the     sensitizer. Compared with the pure anatase TiO2, the     ZnO-covered TiO2 film possesses outstanding ability     to transport electrons with an overall power conversion     efficiency of 3.72. Elctrochemical study shows that surface     modification of TiO2 film with ZnO can increase the     concentration of free electrons in the conduction band of     TiO2. This remit implies that the charge     recombination is reduced in process of electron transport     through the TiO2 porous film, which can decrease the     photocurrent loss and hence improve Dye-Sensitized solar ceils     (DSSCs) efficiency. This result indicates that optimization of     TiO2 porous network fabrication condition is     efficient, for the improvement of TiO2 based DSSC’s     performances.  

      Address (URL): doi:10.3103/S0003701X11040062