کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1552857 | 1513212 | 2016 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Simulation and optimization of current and lattice matching double-junction GaNAsP/Si solar cells Simulation and optimization of current and lattice matching double-junction GaNAsP/Si solar cells](/preview/png/1552857.png)
• Theoretical investigation of current and lattice matched GaNxAsyP1−x−y/Si double-junction solar cells.
• The nitrogen and arsenic concentrations ensuring lattice matching to Si are determined.
• The band gap of GaNAsP is calculated using the band anti-crossing model.
• Optimum compositions of the top sub-cell have been identified.
• The simulation results predict, for the optimized GaNAsP/Si double-junction solar cell, a conversion efficiency η = 37.5%.
This paper deals with theoretical investigation of the performance of current and lattice matched GaNxAsyP1−x−y/Si double-junction solar cells. The nitrogen and arsenic concentrations ensuring lattice matching to Si are determined. The band gap of GaNAsP is calculated using the band anti-crossing model. Calculations were performed under 1-sun AM1.5 using the one diode ideal model. Impact of minor carrier lifetime and surface recombination in the top sub-cell on the cell performances is analyzed. Optimum compositions of the top sub-cell have been identified (x = 4.5%, y = 11.5% and Eg = 1.68 eV). The simulation results predict, for the optimized GaNAsP/Si double-junction solar cell, a short circuit current Jsc = 20 mA/cm2, an open circuit voltage Voc = 1.95 V, and a conversion efficiency η = 37.5%.
Journal: Superlattices and Microstructures - Volume 89, January 2016, Pages 242–251