Hybrid Lateral Multi-junction Solar Cell Using Nonpolar InxGa(1-x)N Material
Manoj Thosar, R. K. Khanna, Ashwini Joshi Thosar
Current Journal of Applied Science and Technology · pp. 1–7 · Published 15 Mar 2016
10.9734/BJAST/2016/24678Abstract
The efficiency of nonpolar InxGa(1-x)N material based hybrid lateral multi-junction solar cells was simulated using finite element approach. In this work we have used p-i-n and p-n structures for designing the sub-cells of hybrid lateral multi-junction solar cells. We have optimized both the sub-cell structures separately at different values of indium composition (x) for maximum efficiency. We have proposed fourteen sub-cells for our hybrid lateral multi-junction solar cell device through which it absorbs solar spectrum from 0.3 to 1.7 µm wavelength range. Results of simulation are presented here, which predict 37.08% average efficiency for lateral multi-junction solar cell based on p-i-n sub-cells while 40.21% average efficiency for lateral multi-junction solar cell based on p-n sub-cells. But the proper hybrid combination of p-i-n and p-n sub-cells provided 41.5% average efficiency.
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