TiO2 photoanode of dye sensitized solar cell (DSSC) was prepared using four different pastes with various amounts of binder in order to obtain various percentages of porosity. The sublayers of TiO2 photoanode have less porosity and more interconnections between TiO2 particles promoting more efficient convey of photo-generated electrons to the external circuit. The upper layers with high pore density have more surface area to adsorb the dye molecules. Therefore, the upper layers are expected to generate more photoelectrons. The result obtained showed that the cell efficiency in single layered photoanodes increased up to 4.38% by increasing the porosity to an optimum level of 71% and decreased upon further increase of porosity density. The efficiency of double'layered cell photoanodes consist of upper layer with 78% porous density and sublayer with 71% porous density was increased up to 4.63%. The best efficiency of 5.35% was achieved in a triple layered cell photoanode (i.e. up to 22% in comparison with the best of the single layered cells). The light harvesting effect of upper layers with more density of porosity seems to be the main reason for the increased efficiency. The simple technique carried out in this work in order to optimize the light harvesting efficiency of TiO2 photoanode is promising and may paved the way for further work in this direction. (C) 2016 Published by Elsevier Ltd.