Towards improvement in the efficiency of the solar cell
24 June 2010Solar energy is one of the major renewable sources of energy; however the major drawback of utilizing the energy is the conversion of it. The best nanowire solar cells available at present thin film solar cells of type III/IV and had a conversion efficiency of the order of 37 to 40 percent and researchers want it to increase to the significant level so that technology is useful and cost effective and can suitably be applied to day to day use.
The Ministry of Economic Affairs of Dutch Government has now granted EUR 1.2 million to the researchers for carrying out research on nanowire solar cells to achieve higher efficiency of the solar cells. Researchers Dr. Jos Haverkort, Dr. Eric Bakkers and Dr. Geert Verbong are expected that when the nanowire solar cell combined with the mirror system, these can generate sizeable portion of the electricity demand in Southern Europe.
Thin film solar cells at presently are being used only on solar panels of satellites as these are very costly. By applying mirror systems having focus systems of the order of one thousand, these solar panels can also be used on earth on a very cost effective manner. Researchers expect that in the next ten years the efficiency of these thin film solar cells can be increased to 65 percent.
The increased efficiency will simultaneously reduce the input cost and has a potential to lead the world’s most cost efficient solar energy technology with a cost price of lower than 50 cent per Watt, which is roughly one-third of present production cost of 1.5 Euro per Watt.
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