Optical absorption enhancement in thin-film organic photovoltaic solar cells through the excitation of plasmonic modes in metallic gratings

2010 ◽  
Author(s):  
Changjun Min ◽  
Jennifer Li ◽  
Georgios Veronis ◽  
Jung-Yong Lee ◽  
Shanhui Fan ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Optical Absorption ◽  
Organic Photovoltaic ◽  
Absorption Enhancement ◽  
Metallic Gratings ◽  
Photovoltaic Solar Cells

Enhancement of optical absorption in thin-film organic solar cells through the excitation of plasmonic modes in metallic gratings

2010 ◽  
Vol 96 (13) ◽  
pp. 133302 ◽  
Author(s):  
Changjun Min ◽  
Jennifer Li ◽  
Georgios Veronis ◽  
Jung-Yong Lee ◽  
Shanhui Fan ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Optical Absorption ◽  
Organic Solar Cells ◽  
Metallic Gratings

Broadband Absorption Enhancement in Thin Film Solar Cells Using Inverse Optimization of Light Trapping Mechanisms

2012 ◽  
Author(s):  
Shima Hajimirza ◽  
Alex Heltzel ◽  
John Howell
Keyword(s):  
Thin Film ◽  
Absorption Spectrum ◽  
Solar Cells ◽  
Indium Tin Oxide ◽  
Rear Surface ◽  
Front Surface ◽  
Optimization Techniques ◽  
Absorption Enhancement ◽  
Back Surface ◽  
Metallic Gratings

In this paper, global optimization techniques are used to design broadband solar absorption enhancement in thin film amorphous silicon (a-Si) solar cells, using periodic nanostructures on the top and bottom surfaces of the cell. Considering a combination of silver rectangular gratings and indium tin oxide (ITO) coatings on both surfaces of the a-Si, numerical optimization techniques such as Simulated Annealing and a local constrained Quasi-Newton algorithm are used to optimize the surface texture patterns. Numerical results indicate that, unlike the case of metallic gratings on the front surface, a periodic silver grating structure on the back surface results in a modification of the absorption spectrum largely independent of the effect of anti-reflection ITO coatings on the front of the cell. Furthermore, additional improvement can be obtained by using a thin rear surface ITO layers. Therefore, using a combination of metallic gratings and ITO coatings on both sides, a wideband absorption spectrum enhancement is achievable. Simulations predict integrated enhancement factors as high as 2.0 (100% improvement) for the case of metallic grating on the back surface and ITO layers on the front, and as high as 2.2 (120% improvement) when a combination of grating and ITO coatings on both sides is used. Such noteworthy improvements are made possible by efficient multi-parameter optimization supplanting an intractable exhaustive search.

scholarly journals Optical Absorption Enhancement in Amorphous Silicon Films and Solar Cell Precursors Using the Aluminum-Induced Glass Texturing Method

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Nasim Sahraei ◽  
Selvaraj Venkataraj ◽  
Premachandran Vayalakkara ◽  
Armin G. Aberle
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Optical Absorption ◽  
Near Infrared ◽  
Absorber Layer ◽  
Silicon Films ◽  
Absorption Enhancement ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

One of the key issues of thin-film silicon solar cells is their limited optical absorptance due to the thin absorber layer and the low absorption coefficient for near-infrared wavelengths. Texturing of one or more interfaces in the layered structure of these cells is an important technique to scatter light and enhance the optical pathlength. This in turn enhances the optical absorption of the solar radiation in the absorber layer and improves the solar cell efficiency. In this paper we investigate the effects of textured glass superstrate surfaces on the optical absorptance of intrinsic a-Si:H films and a-Si:Hp-i-nthin-film solar cell precursors deposited onto them. The silicon-facing surface of the glass sheets was textured with the aluminium-induced glass texturing method (AIT method). Absorption in both intrinsic silicon films and solar cell precursor structures is found to increase strongly due to the textured glass superstrate. The increased absorption due to the AIT glass opens up the possibility to reduce the absorber layer thickness of a-Si:H solar cells.

scholarly journals Effect of plasmonic Aluminum nanoparticles shapes on optical absorption enhancement in silicon thin-film solar cells

2021 ◽  
pp. 127509
Author(s):  
Maedeh Rassekh ◽  
Reza Shirmohammadi ◽  
Roghayeh Ghasempour ◽  
Fatemeh Razi Astaraei ◽  
Saber Farjami Shayesteh
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Optical Absorption ◽  
Thin Film Solar Cells ◽  
Absorption Enhancement ◽  
Aluminum Nanoparticles ◽  
Silicon Thin Film

scholarly journals Triangular metallic gratings for large absorption enhancement in thin film Si solar cells

2012 ◽  
Vol 20 (9) ◽  
pp. 9458 ◽  
Author(s):  
Enes Battal ◽  
Taha Alper Yogurt ◽  
Levent Erdal Aygun ◽  
Ali K. Okyay
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Absorption Enhancement ◽  
Si Solar Cells ◽  
Metallic Gratings
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