3-D optical modeling of thin-film silicon solar cells on diffraction gratings

2012 ◽  
Vol 21 (1) ◽  
pp. 94-108 ◽  
Author(s):  
Olindo Isabella ◽  
Serge Solntsev ◽  
Diego Caratelli ◽  
Miro Zeman
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Diffraction Gratings ◽  
Silicon Solar Cells ◽  
Optical Modeling ◽  
Thin Film Silicon

3-D optical modeling of single and multi-junction thin-film silicon solar cells on gratings

2012 ◽  
Vol 1426 ◽  
pp. 149-154 ◽  
Author(s):  
O. Isabella ◽  
S. Solntsev ◽  
D. Caratelli ◽  
M. Zeman
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Current Density ◽  
Triple Junction ◽  
Three Dimensional ◽  
Silicon Solar Cells ◽  
Geometrical Parameters ◽  
Optical Modeling ◽  
Thin Film Silicon ◽  
Photo Current

ABSTRACTThree-dimensional (3-D) optical modeling based on Finite Element Method of single, double, and triple junction thin-film silicon solar cells is presented. The combination of front periodic gratings with optimal geometrical parameters and rear ZnO/Ag reflector constitutes an efficient light trapping scheme for solar cells in superstrate (pin) configuration. The application of optimized trapezoidal 1-D and 2-D gratings resulted in 25.5% (1-D case) and 32.5% (2-D case) increase in photo-current density with respect to the flat solar cell. The application of inverted pyramidal 2-D gratings in double and triple junction silicon solar cells with very thin absorber layers resulted in a photo-current density > 11 mA/cm2 and > 9 mA/cm2, respectively.

Advanced Optical Modeling of Thin-film Silicon Solar Cells with 1-D Periodic Gratings.

2011 ◽  
Vol 1322 ◽  
Author(s):  
S. Solntsev ◽  
O. Isabella ◽  
D. Caratelli ◽  
M. Kyriakou ◽  
O. Yarovyi ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Photocurrent Density ◽  
Silicon Solar Cells ◽  
Geometrical Parameters ◽  
Optical Modeling ◽  
Full Wave ◽  
Thin Film Silicon ◽  
Full Wave Analysis ◽  
Periodic Gratings

ABSTRACTDesign of one-dimensional periodic gratings is investigated for enhancing the light absorption in thin-film silicon solar cells due to scattering at rough interfaces that are introduced into solar cells by the gratings. A rigorous full-wave analysis is carried out in order to determine the optical properties of amorphous and microcrystalline silicon solar cells in PIN and NIP configurations, respectively. Optimal geometrical parameters of 1-D gratings for maximizing photocurrent density in thin-film silicon solar cells are determined.

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