| A Dye Sensitized Solar Cell (DSSC) (also known as Grätzel type solar cell) is one area of the great promise of solar conversion. This type of solar cell employ organic sensitizer to absorb light and produce a flow of electron and use nanocrystalline structure having 2000 times more high surface area compared with nonporous material, which enhance the light absorption and thus high electron conversion efficiency.;Nanocrystalline morphology of the oxide semiconductor film was used in the DSSCs due to their high surface area but for more fundamental aspects (orientations, Forms dependence to DSSCs efficiency) studies single crystal electrodes have some advantages (more simple and controllable system).;In this study, Incident photon-to-current conversion efficiency (IPCE) and dye coverages by photochronoculometric technique were measured on four different TiO2 single crystals (anatase (001), anatase (101), rutile (001) and rutile (100)) surfaces with structurally similar organic dye molecules to both understand the dimer forming and the coverage with different lattice matching.;We also investigated passivation of Gallium Phosphide (GaP), face dependence and pore formation in single crystal semiconductors with anodic etching methods. We highlight the possibility of GaP as the material for DSSC and the mimic system of the Grätzel type solar cell with GaP was demonstrated. |
