Analysis of Efficiency Loss in AlGaAs/GaAs Hetero-junction Solar Cell
要旨
Energy conversion efficiency is a major issue for photovoltaic cells. One of the main challenges of modern day research is to improve the efficiency level of photovoltaic devices by introducing new materials and advanced concepts. The target is to reach a high efficiency level within affordable cost, which will lead to a mass generation of electricity using photovoltaic devices. III-V hetero-junction solar cell has been introduced and characterized here, which uses an AlxGa1-xAs/GaAs hetero-junction as the working p-n junction. Energy conversion efficiency for each design was calculated from its corresponding light J-V characteristics curve. Fill factor and efficiency loss was calculated for each mole fraction of 0 to 1 with a gap of 0.01. Here, exclusively an idea of which particular composition of AlGaAs minimizes the effect of defects in GaAs/AlGa AS solar cell has been presented. It also presents a picture of trade-off between efficiency and lifetime, as lifetime is directly related with the amount of defects and thus will open new doors for analyzing different material compositions for efficient solar cells. Keywords: Solar cells, hetero junctions, PV cells Cite this Article Jawad Ahsan Sadi M, Adnan Siraj Rakin. Analysis of Efficiency Loss in AlGaAs/GaAs Hetero-junction Solar Cell. Journal of Energy Environment and Carbon Credits. 2016; 6(3): 26–33p.
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