PERFORMANCE ANALYSIS OF SUPER HIGH EFFICIENCY THREE JUNCTION SERIES CONNECTED TANDEM SOLAR CELL
| Main Authors: | Md Abul Hossion, Abu Kowsar, Chandan Qumar Howlader, Zahid Hasan Mahmood |
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| Format: | Proceeding eJournal |
| Terbitan: |
, 2010
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4017447 |
Daftar Isi:
- Theoretical efficiency has been calculated for three-junction series connected solar cell using air mass 1.5 global. This efficiency depends on the band gap. If a high band gap is chosen to obtain a high voltage cell, the current is low because most of the solar spectrum is sub-band-gap light, and, therefore, is not absorbed. If the band gap is decreased so that most of the spectrum is absorbed, then the voltage of the cell is decreased. Here we use a high band gap material GaInP2 as top cell parameter whose thickness is very thin. And a low band gap material GaAs as middle cell parameter whose thickness is more than that of top cell thickness. A much lower band gap material Ge as bottom cell parameter whose thickness is more than that of middle cell thickness. To produce optical transparency and maximum current conductivity between top and bottom cells these three materials are lattice matched. So electrons can easily pass through the junctions. Using mathematical formulation and studying properties of GaInP2 and GaAs and Ge the theoretical efficiencies for three junction solar cells fabricated with these materials would be explained on analysis. Future prospects for realizing super-highefficiency and low-cost tandem solar cells are also discussed