Mismatched front and back gratings for optimum light trapping in ultra-thin crystalline silicon solar cells
Name
Chen_Mismatched front with SI.pdf
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3.51 MB
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Author(s)
Hsu, Wei-Chun
Tong, Jonathan K.
Branham, Matthew Sanders
Huang, Yi
Yerci, Selcuk
Boriskina, Svetlana V
Chen, Gang
Date Issued
October 2016
Journal
Optics Communications
Publisher
Elsevier
Citation
Hsu, Wei-Chun, Jonathan K. Tong, Matthew S. Branham, Yi Huang, Selçuk Yerci, Svetlana V. Boriskina, and Gang Chen. “Mismatched Front and Back Gratings for Optimum Light Trapping in Ultra-Thin Crystalline Silicon Solar Cells.” Optics Communications 377 (October 2016): 52–58.
Version
Final published version
Abstract
The implementation of a front and back grating in ultra-thin photovoltaic cells is a promising approach towards improving light trapping. A simple design rule was developed using the least common multiple (LCM) of the front and back grating periods. From this design rule, several optimal period combinations can be found, providing greater design flexibility for absorbers of indirect band gap materials. Using numerical simulations, the photo-generated current (Jph) for a 10-μm-thick crystalline silicon absorber was predicted to be as high as 38 mA/cm2, which is 11.74% higher than that of a single front grating (Jph=34 mA/cm2).
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
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DOI of Published Version
https://doi.org/10.1016/j.optcom.2016.04.055
