Low Cost Dye-Sensitized Solar Cell By Using Screen Printing Deposition Method

Nurul 'Ashikin, Mohd Rodzi (2014) Low Cost Dye-Sensitized Solar Cell By Using Screen Printing Deposition Method. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 pages) Low Cost Dye-Sensitized Solar Cell By Using Screen Printing Deposition Method 24 Pages.pdf - Submitted Version Download (607kB)

Abstract

Looking for the green sources of energy have been the subject for research activities for last decade. For years we have been using various kinds of energy sources to fulfill energy requirement. In order to reduce further accumulation of greenhouse gases GHGs, green generator or converter of energy has been designed to replace the conventional (fossil) energy sources. A new technology had been developed that is known as Natural Dye Sensitized Solar Cells (NDSSC), NDSSC consists of a group of photovoltaic cells that produce green energy at low cost of sensitization material production since no vacuum systems or low cost equipment are usedin fabrication process.Besides natural dyes from flowers, leaves, fruits can be easily obtained,non toxic and easily extracted. In NDSSC, when dye molecules exposed to light source, they became oxidized and the electrons will be transfered to nanostructured layer of wide bandgap semiconductor for example . Next,the electrons created and produced outside the cell through ohmic contact to a load. This paper reviews the structure and working principles of dye sensitized solar cell DSCC. Discussing preparation procedures , optical and electrical characterization of the types of natural dyes, raspberry and blueberry. Nowadays, these type of natural organic dyes are explored and used as a sensitizer .This is due to replace number of the man- made dyes used as sensitizer in many commercialized photoelectrochemical cells.Dye sensitized solar cell with dimension 2.5 cm x 2.5 cm is fabricated by using screen printing method with thickness 10μm of titanium dioxide (TiO2) by putting it on indium tin oxide (ITO) coated glass.Then, the solar cell is tested under sunlight. Dye extracted from raspberry with TiO2 viscosity 1.0 g is the best natural dye were used, has value Isc (0.0367 mA ), Voc (474mV) , FF (0.818), Pmax ( 0.0000142) and ƞ( 0.0568).

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