scholarly journals Efficiency Enhancement of GaAs Single-Junction Solar Cell by Nanotextured Window Layer

2022 ◽  
Vol 12 (2) ◽  
pp. 601
Author(s):  
Chae-Won Kim ◽  
Gwang-Yeol Park ◽  
Jae-Cheol Shin ◽  
Hyo-Jin Kim

In order to improve efficiency of flexible III-V semiconductor multi-junction solar cells, it is important to enhance the current density for efficiency improvement and to attain an even efficiency of solar cells on a curved surface. In this study, the nanotextured InAlP window layer of a GaAs single-junction solar cell was employed to suppress reflectance in broad range. The nanotextured surface affects the reflectance suppression with the broad spectrum of wavelength, which causes it to increase the current density and efficiency of the GaAs single-junction solar cell and alleviate the efficiency drop at the high incident angle of the light source. Those results show the potential of the effectively suppressed reflectance of multi-junction solar cells and even performance of solar cells attached on a curved surface.

1996 ◽  
Vol 452 ◽  
Author(s):  
M. Goetz ◽  
P. Torres ◽  
P. Pernet ◽  
J. Meier ◽  
D. Fischer ◽  
...  

AbstractThe first successful deposition of ‘micromorph’ silicon tandem solar cells of the n-i-p-n-i-p configuration is reported. In order to implement the ‘micromorph’ solar cell concept, four key elements had to be prepared: First, the deposition of mid-gap, intrinsic microcrystalline silicon (μc-Si:H) by the 'gas purifier method', second, the amorphous silicon (a-Si:H) n-i-p single junction solar cell, third, the microcrystalline silicon n-i-p single junction solar cell and fourth, the ability of depositing on aluminium sheet substrates.All the solar cells presented have been deposited on flat aluminium sheets, using a single layer antireflection coating to couple the light into the cell. It is shown, that this antireflection concept- together with a flat substrate- holds for amorphous single junction solar cells, but it reaches its limit with the extended range of spectral response of the ‘micromorph’ cell.The best initial efficiencies for each category of n-i-p cells on flat substrates were: 8.7% for the amorphous silicon single junction cell, 4.9% for the microcrystalline silicon single junction cell and 9.25% for the ‘micromorph’ tandem cell.


2017 ◽  
Vol 168 ◽  
pp. 201-206 ◽  
Author(s):  
Z.C. Su ◽  
S.J. Xu ◽  
R.X. Wang ◽  
J.Q. Ning ◽  
J.R. Dong ◽  
...  

2013 ◽  
Author(s):  
Joon-Suh Park ◽  
Jihoon Kyhm ◽  
Hyungduk Ko ◽  
Jin Dong Song ◽  
Eunkyeom Kim ◽  
...  

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