Abstract

• Two cells, three cells and four cells meander type dye-sensitized solar cell modules have been fabricated by using natural dyes extracted from teak leaves as sensitizer. These solar cell modules were assembled with two 20-30 ohms conductive glasses (TEC 15, Dyesol) (one for TiO2 coated electrode and another for carbon coated electrode), TiO2 nanopowder (Degussa-P25 powder), iodide electrolyte solution and soft graphite pencil for carbon coating. The silver lines were drawn for series and meander connections. The silicone was drawn as a protective barrier on both sides of the silver line. The performance of all fabricated DSSC modules was evaluated by the open circuit voltage Voc, the short circuit current Isc and the fill factor (FF). The energy conversion efficiency ( ) was obtained under the air mass (AM) 1.5 radiation.