Some studies on cost efficient solar cells

Abstract

Dye sensitized solar cells are well known as a cost-effective photovoltaic device because of inexpensive materials and simple fabrication process. Dye-sensitized solar cells are composed of titanium oxide (TiO2) semiconductor which is commonly used as a paint base in pigment industry, and the dye sensitizer that can be extracted from a variety of natural resources with minimum costs. In addition, carbonaceous materials could be used to replace platinum catalyst which can further reduce the material cost. As such, DSSCs are easy to fabricate since they are insensitive to environment contaminants and process able at ambient temperature. These unique features are favoured in roll-to-roll process which is a continuous, low-cost manufacturing method to print dye-sensitized solar cells on flexible substrates. Furthermore, DSSCs work better even during darker conditions, such as in the dawn and dusk or in cloudy weather. Such capability of effectively utilizing diffused light makes DSSCs an excellent choice for indoor applications like windows and sunroof. In my project I have prepared solar cells using three different dye extracted from flower of colour red blue and 3rd is combination of both colour. I have studied all electrical parameter like current, voltage, Fill factor and efficiency of the prepared sample